My biggest problem with the movie was the last shot of the Alien busting out of the dudes chest. I don't mind having it there for the fan service but it felt like it just went on way way too long.
I also have gripes with the script, or at least how things played out in the movie. There were some story points that were either executed a little sloppy or were just breezed by too fast.
But overall I really liked it. It was the type of movie that I feel like I haven't seen in ages. It had some cool monsters, some good characters and just some good, freaky shit that I don't feel like we get a lot of these days.
From my perspective it seems a lot of haters are stuck on the Alien connection. I walked into this movie not even expecting to see a single Alien and could have done without the one that I did see. A lot of people seem to be picking apart why the movie does a disservice to the Aliens franchise and how certain plot points don't line up with things in Alien or Aliens. I wasn't expecting anything beyond the vaguest of connections, though I also don't have as strong an attachment to the franchise as some folks.
Either way, I thought it was a great time.
I'm out like the gout.