The technology in Prometheus feels out of place, even considering a simple mining vessel in Alien vs this top of the line endeavor. I was willing to set that aside though, imagining that perhaps Scott wants each film to be far future technologically and is simply modernizing that.
Visually, Prometheus is no doubt impressive. Expansive shots and tightly framed ones mix with all sorts of effects to capture both the expansiveness and the claustrophobic feel of horror.
The problem with Prometheus is it feels like it is very uneven. At times it is brilliant and at others it falls on its face. The cast all does their part, nobody is a bad standout. Charlize Theron is the only one who initially comes across too mustache twirly, but that does not last past the opening.
I only took larger issue with the encroaching of the directors and films needs versus what made sense for the story. Most visible was how immediate everyone is prepared to remove their protective gear, and undoubtedly easier way to film but nonsense for a bunch of people only just landed on an alien planet.
Still, Prometheus is interesting and has a couple of moments that I feel could have been iconic if not tied to the larger whole of a film that from my understanding has been divisive amongst fans of Alien. I still want more and I am willing to give more rope for the philosophical elements it was proposing and mostly not answering. Hopefully the next movie grows this better. I commend Prometheus, at the very least, for not mimicking Alien or Alien 2. It is, as they were, unique.