Looks great, and I'll definitely be seeing this, but...
This is supposed to take place before the 1979 original yet the Earthlings' technology -- down to the spacesuits -- looks much more advanced that the first movie's. Also, Ridley Scott took great pains to make the Nostromo look lived in and "real" but this version of the future looks much too clean by comparison.
Still, I'll be there opening weekend, I'm sure.