Well, Roger Ebert has his Doom review up and not a huge amount of good things to say. Apparently the one good shot in the movie is the universal logo right at the very beginning :)
Mr Cranky has chimed in as well, offering this nugget at the end of the review:
There are several shocks in this movie. Unfortunately, the appearance of some semblance of acting ability from The Rock is not among them.
I'm still wanting to see it though.... I mean, this is a movie that I've heard about and wanted to see made literally since it was first talked about in the Doom 2 or Quake 1 (or was it even earlier?) days. I'm going in with really low expectations and I know (as I said before) that it'll be bad... and I don't care, it'll be a blast :)