I'm more interested in whether wireless ac will extend the range (with sustained levels of connectivity) over the current n specification at 5GHz. I currently have a time capsule running dual mode n/g wireless. I live in a railroad apparment in NYC. The rooms at the front of the house, where the t/capsule is, get plenty fast connectivity (the t/c is hard wired to a DOCSIS modem which provides a 50Mbps internet connection via Time Warner Cable). However, I have to plug an Airport Express in to the hallway as a repeater/bridge just to get a connection on the wireless g network, and that connection is pretty slow...and there's no connection on the wireless n portion.
Hoping with this new ac standard I can ditch the g network and the Airport Express repeater, and have adequately fast connectivity from the rear to the front of the appartment. So, if anyone has any insights into how the range/wall penetration of ac compares with that of n, please weigh in, thanks.