The requirement to set this up via a phone/tablet app...I wonder if there will be a Chrome app to do this as well, that would make sense...is interesting. They must think that the user base predominately has a device for this.
Dynamically being able to switch wi-fi channels is a nice feature if you have devices using 2.4 GHz, which tends to be quite crowded. Pricy device, tho, and if it's gonna be $199 at Walmart.com, there will be considerable pressure to block anyone else undercutting the price. But this is a future-proofing, forward-looking router...altho that argues, why didn't they go a bit faster than AC1900?