Ok firstly, I am a massive fan of CKY, both the band and the films. After previously owning both CKY 1 and 2k individually, I thought I couldn't go wrong with the boxset.
HOWEVER, I was dissapointed to find that a) the CKY 1 featured in the boxset was not the one I was familiar with. Many of the classic moments I remembered had been cut out. And b) the CKY 2 and 3 featured in the boxset are the REMIXED versions; heavily edited, in my mind, not for the best.
So overall, whilst this is still CKY and newcomers will find it hilarious, I would recommend buying them individually. More expensive maybe, but definately, definately worth it.