Installation was straight forward enough with good instructions. Unlike many wall sockets, which allow wires to be connected by curving them and a screw pressing them into the socket OR inserted straight into a female hole, this socket only does the curving+screw twist. No big deal.Sockets say they are 5V and 2.4A. My ipad 2 charger outputs at 5V and 2.1A, so in theory this should charge the ipad2, and in practice it does. I installed it today and it's currently charging an ipad2 and ipod5 at the same time.I don't believe for a second this will save me $20/year, as amazon claims in the listing, but this reduced my use of an adapter + existing port, and Apple is starting to cheap out on those adapters now anyway; the ipod 5 came only with the lightning cable and not a 120v adapter. With this socket it doesn't matter!This will get heavy use now indefinitely. I expect I will update this review if anything goes wrong with it, like a dead USB port.