So I'm going to be buying rock band rivals for PS4. Unfortunately, my instruments are for Wii, so I'll have to buy new instruments. I can't afford the band in a box bundle and heard that the drums can have issues anyway, so I'm going to buy the game with just a guitar and get the drums second hand from somewhere.

I found someone selling the Guitar Hero World Tour drums quite cheap, and they're apparently compatible with Rock Band 4. Would you guys recommend I go for it, or are the drums no good, and I should wait until I find something better?

EDIT: The drums are for PS2, not PS3. Is that going to be an issue? I'm using this compatibility chart but I can't really tell what the Xs in the platform columns mean.