I have the bluray for 2001. Its one of the best looking films I've ever seen (it helped that I got to test a 46" 1080p tv at the time I bought it). I did notice the occasional spec here and there though. Near the end of the film there is a little bit of wobble.

That being said, easily one of the best looking films I've ever seen.
Kind of wish I could see it in 70mm, but we only have like 3 theathers in my country that are even equipped for 70mm. (or IMAX, not sure if there's many non imax 70mm places)