The KW's are awesome mate, make sure you have a fiddle around with the bound and rebound rates. The factory rates are pretty stiff for daily driving, took me over a year to get around to adjusting them and I regret not doing them sooner. Rides very comfortably now and handles even better...
Also make sure your hub bolts are tight! I'm talking breaker bar with a pipe for leverage on it tight. The slots in the coilovers where the hubs bolt can quickly come out of adjustment with a bad pothole or two (not sure if other coilovers are like this), potentially causing your tyre to rub on the coilover. Bad situation that a few of us have been in.
I went as far as welding mine to get rid of the slot.