Positive: During the day it facilitates the writing - which PS3 Messenger for input into the controller without keyboard smarter of the letter position ago constructed as the Xbox counterpart of Negatives: L1 and R2 button is no longer so easy to reach - the Disturbs edge of the keyboard No lighting Power supply separately and not via controller (= Two Ladevorgaenge or 2 charging cable required) SHIFT ETC. FUNCTIONS NOT are immediately recognizable Position above is crap. As you type, I have the Controller no longer under control XBOX-keyboard is a lot more clever HERE DESIGNED - EVEN IF ADVISED OF Xbox controller for worse.