I agree with the review, It really points out a lot in what appears to be a simple sci-fi horror movie.  I kinda wish I hadn’t seen the movie, because it was slow and not very well made.  I also noticed that the same basic story line of Cube was recreated in the Saw movies, which had a better plotline.  So if you are looking for a thriller which pits people in horrific situations, just get saw or saw 2.