Essentially turned my surface pro 3 into a surface book i have both and its a nice addition and worst of all it places a a lot of pressure on the surfaces screen that leaves a mark even after removed ive had it for half a day however after setting it up it works very well

Cons doesnt come charged lip between the screen and keyboard is small hard to put a finger in to open the unit when closed manualy have to turn off and on no bid dea