Had my 2011 wk2 X for about two months(used) and loving it. Only problem is I haven't made any modifications other than window tint, slush mats and removal of the air dam fins in front of the tires not really sure what they are called.
Good news is the wife likes the look of the altitude so thats the route i'm headed with permision.
I've already found of ton of usefull tips, tricks, and ideas. And the android app is awesome.