I really enjoyed the movie, especially their efforts to tie into the 80s 'sequel'.
However, I do agree that the cast was just a bit too cute and tidy, the CGI, while really good in some places, just couldn't quite replicate the slimy realism of some real life props. It did feel more formulaic than the original and the paranoia quotient wasn't as high.
I totally called the possibility and circumstances of a possible sequel before I went in. Still, as horror films go, I wouldn't mind seeing another one if they can avoid turning it into some kind of effects heavy bug hunt.