What is Mesh?

I think the problem here is that this is not real mesh.

This is a standard hub and spoke network architeicture using one channel of the AP's wifi as backhaul between the AP and remote hubs. Real mesh means that the various hubs talk to each other, able to change connections if one remote hub goes down or if there is interferance.

On the negative side, you can get a lot of latency using REAL mesh - so that is why no one uses real mesh. Each time the signal bounces from one meshed remote hub to another, there is a tiny bit of delay.  Plus the signal path can keep changing - potentially causing additional latency and connection issues.

Instead, the various manufacturers are using hub and spoke and are juut calling it mesh. Whatever you want to call it, it works fine. The mesh term here is just marketing jargon. Ignore it.  . 

I have setup my own roaming networks in the past and used to do technical support for a fruit company for 6 years. The difference between a homebrew roaming setup vs something like the Eero system is that the Eero routers are aware of each other as well as all the devices on your network and rather than letting the devices figure out which base station to connect to (based solely on signal strength), the Eero system figures out total bandwidth draw, QoS AND signal strength and then pushes devices to the unit that will deliver the best OVERALL performance. Last week I installed a 3 pack of Eeros in my home and the difference is amazing. For the record, I am fortunate enough to have cat6 throughout my house so the backhaul is all wired, but I never had the quality of coverage I do now even when I had 4 'traditional' routers hooked up.

I've used a product called "Open Mesh" which is cloud managed for several years.  I totally love it.  Very inexpensive.  You can find it at open-mesh.com.  I am not affiliated the company.  

This is most definitely not "new" technology. Cisco & Motorola have been doing this with wireless for about 10 yrs. They have a wireless controller (Motorola RFS 7000 as an example ) that controls many access points. The controller handles all of the security, access and brains of the mesh network, and the access point is just a radio with antennas.
The issue with these systems has always been cost. $10-20k starting price is more than a home user is interested in.
The mesh kits I am seeing advertised now for home are still more pricey than I want to invest in. In theory, your controller / router should theoretically be a few $100 & the access points /radios under $100. Also, if they are going to offer it to the general public, there should probably be a set of standards that all the manufacturers use, so that the access points / radios are interchangeable among the brands.
Just my opinion. ..

this is not NEW technology; it has been used in the mining, defense, and public safety world for some time.  Some mesh devices are actually wearable.  Nice to see it making it's way to business and consumer grade applications, and it will become the norm in the not too distant future.

How is this different than adding an airport express to an existing base station?

It is understandable that contributors here are confused as to what this new technology is, as the article does little to explain it, but mesh technology is revolutionizing industrial applications today, particularly where transport systems and vehicles must remain in perfectly seamless contact with a network  throughout a long trajectory, with high levels of safety or other mission-critical reliability. Whether this technology will prove relevant to home users, remains, in my opinion, to be determined, but as price points continue to drive downward, it is incontestably the highest performance architecture for remaining in communication throughout any defined perimiter.

When will we see some product? Isn't this the same as we have now with the repeaters that are offered?

 What    about  the  tadiation,  and  potential    cancer  it  can  cause.    Cell   phone  are  very  dangerous,  and  cause  brain  cancer,

This  was  provrn  in  Sweded,  and  Israel   How  much  will    this  system  cosy ??

I have already done this by adding an additional access point on the other side of my home.  Between the 2 wifi points I have full coverage of the home.  What makes this different from what I already have?

Agreed.  This communication does't explain anything new at all.  Wireless extenders have been around for a long time, so presumably there is something new here.  Netgear just announced and released Arlo Orbi which appears to use a third frequency range for AP to AP communication.  This sounds like a similar technology.

The best solution is still wired devices or wired WAPs on different non-overlapping channels using the same SSID.  The latter here allows mobility around the space without losing a connection as long as the site survey, design and implementation have been done well.

The win of a well implemented mesh technology for normal consumers would be to include the out of band connectivity between mesh nodes so as not to reduce performance and include some software & hardware to aid consumers in the proper placement of the nodes around the house.  This would allow people with a normal level of skill to expand their wireless coverage around challenging spaces with a minimum of effort.

how is this new technology? dead zone is just that a dead zone..direct connect to router and Daisy chain the nodes? so there's one node connection with the router and the others connect from the one node? that's messed up..never work..the one main node goes down the entire node system goes down....what's the advantages of using this?

This add may sell people who are not familiar with technology and who knows, this may be the target audience. But for those who do understand, there is absolutely no information here. It is a nice idea, but how does it actually work is the question.

If I had more time, I might look into this more seriously, but not today.

This ad/presentation isn't going to sell anyone on MESH.  People want facts, specifications and performance numbers.  Today's customer is far more sophisticated and knowledgable - this is a mIssed opportunity by B&H.

When you carry your laptop or tablet from one zone into another, does it have to reaqcquire the router (or repeater)?  If so, how long and how much of an interruption does this entail?  And what is the end effect of a streaming connection?

please someone tell me that this equipment isn't using 2.4 ghz!

Mesh is great where other options are not available (i.e. cabling)

Big downside is that unless you use a different backhaul method, any time you add a repeater to a Wifi network, you halve the throughput.

HAM RADIO operators have been installing MESH networks for years not only in homes, but around their cities expanding free WiFi.

Mesh has been around for a few years in the commercial area and especially in the education arena. The biggest adantage is that users can move around a large area and stay attached to WAN/LAN without dropping off when out of range of an AP. This home concept is similar. The drawing makes it seem as a big "new" thing of having multiple AP's in a home. Dead spots however, are still dead spots.

So what is a "node" if it's not a bridge/repeater? And if you put a "node" in a dead spot (as you have in your example diagram), how can it communicate with the base router? it needs to be in a live area so it's range can extend to cover the dead spot. Your product may be wonderful but I am not impressed with the presentation

If the clients cannot pick up; the router, how do you expect these to pick it up?