I saw a matinee of this today.
First off, the critics reviews lean negative, which I knew going into the movie. However, the reviews seem to criticize it for mainly two things: Not having much character development, and not being as "good" as the 1972 original. I like the critical hindsight of the latter statement, considering the critics roasted the 1972 film (which went on to break BO records). The first complaint is valid, if this were a serious drama. It's not.
It's a pure action/adventure movie from start to stop, and it works terrifically in that regard. The special effects are staggering, probably the most astonishing I've seen in a movie. The characters/plot/dialogue are all paper-thin, but they are just enough to do what the movie sets out to do--be a virtually mindless thrill ride. Personally, I think not giving the characters too much background is a plus. The film wants to move bang-bang-bang, it would only have to stop and explore the backgrounds. Petersen wisely knows that character ain't the selling point for the movie, so it's best to just do the minimum and get moving. And it works just fine.
I admit to missing the unapologetic 1970s cheese of the original. The cheese of the new version is decidedly less colorful. So I'd say the 1972 movie is safe in retaining its cult classic status, certainly. But the remake is simply fun and in many ways far more breathtaking. I'd recommend it for anyone interested in some mindless escapism with great effects. If you want an engrossing character drama, avoid at all costs.