Well, I think as a game there were other ones that were clearly better, for sure. Controls of the first one were a little rough, difficulty was a bitch (I only managed to play through the game when I got the rom and emulated it...) but the game was still something special to me. It hooked me right when the music started and I was transported to a mysterious world full of secrets and strange enemies. This is the vibe Psygnosis was able to bring to me. I had an almost identical feeling in Lemmings in some levels where the art design just wowed me.
I think it is close to impossible to transfer the art design and feeling the 2d designers were able to transport to a 3d world but I really want to proven wrong.
As a game, I don't think Shadow of the Beast was anything special, it was just technically very impressive and presented in an incredibly beautiful package. I mean.
It's important to me too, I really enjoyed them when I first played them - but I don't think as games they were particularly good.
I'm happy to see it revived though. And secretly I'm hoping they'll put the original Shadow of the Beast on PSN alongside this.