I only gave this three stars because of the problem I had getting it setup. It is actually performing very well now. When I first installed it, one of the three routers would not connect and it took me several days of dealing with their somewhat sketchy tech support to get it working. I almost sent it back to Walmart.
However, now I am glad I did not. It greatly improved the WiFi signal in my house! My modem and router are downstairs and one of my computers is upstairs on the opposite end of the house. So, I always got a poor signal and slow speeds, I was consistently getting less than 10 Mbps and it dropped the signal often. After I got all three Tenda routers working (with one of them being in the same room as the computer.), I have a strong signal and consistently get 50 Mbps. So, I am happy with it now.