I like the idea of no network cables, but it seems the faster the speeds the more critical line of sight and so will this really make Wi-Fi work as good or better then a network cable? I really hope so...

I have about 10 access points built into the ceiling in each room of my house. They are all hooked up to the router via CAT6e cable and 3 switches. Given the bottleneck introduced with the switches and the fact that no matter what room i'm in I will have LOS to the Wireless AP, even if these fall below their lofty claims theres a good chance they will be able to deliver enough throughput to max out the bandwith of the CAT6e connections which is a good thing in my book.