bk2000 fans are certainly passionate about them, agree about the lights.
The light show is awesome, as is the soundtrack (although it does get repetitive). I think its gameplay it not very good though, the only thing to shoot for on the lower playfield is to get the ball to the upper playfield. It's a cult game though, so will make a lot of top system 11 games lists because of its status due mostly to the music I think.