I loved it! I bought it a couple years ago for PS2, and thought it was really well done. I was dissapointed to hear that SMG and Aly Hannigan couldn't do the voiceovers for their characters, but everyone else has the actor's voice. You get to play as Buffy, Spike, Faith, Xander, Willow (and even a wee little puppet man 😉), each having their own abilities and strengths, makes the game just that more fun!
I got stuck on a couple levels, but there's enough support online for it by now that you can certainly muttle your way through. It's challenging but only reasonably so, I think the average person would enjoy it.
I'd reccomend it anyway, I was very impressed with it! Worth the money for sure, will always be entertaining 😀