Hello, I use this keyboard & own now since more than one year, and at first had no problems with it. - However, since more than 2 months the 3 keys respond: e, r, t, s, u and f nurnoch at very solid typing. If you want to write quickly, for example with his friends via Facebook, Twitter, Skype & Co and you always make a mistake because the most frequently used keys, or keyboard, the signal does not pass, that sucks pretty. I find that this keyboard should last longer from a price of ~ 65 quite a bit.