This was a great movie for what it was supposed to be. It is a majorly testosterone fueled movie about a bunch of thugs arguing with each other and then having to fight together against the alien inhabitants on the planet. There was just enough story that kept you interested in the characters and there was much more continuity with the two previous entries in this franchise than I expected and the alien makeup/design is still some of the better work out of any recent attempts to capture that look/feel from the Aliens franchise.
If you liked either of the first two movies based on the Riddick character, you should definitely like this one. I wasn't really a fan of The Chronicles Of Riddick but loved Pitch Black. This was much more like Pitch Black thankfully.