GOOD
-Short, but this means it doesn't overstay its welcome - 6 hour campaign tops
-Secrets and extra items to find by straying off the main track
-Nice variety of aliens to fight and weapons to use
-Options to ugprade your weapons throughout the game to complement your playstyle
-Fairly decent music which changes when a swarm approaches
-Level design looks nice and feels in keeping with the genre
-No major bugs or glitches, besides the ones you shoot
-Plot delivered mostly by still comic book art with voiceover
BAD
-The gameplay loop is fetch quests with shooting inbetween, might frustrate some
-Occasionally, can get stuck on the terrain, but not a huge deal
UGLY
-Up-close the graphics look a bit ropey, but hopefully you're not here for that.
Generally speaking, I enjoyed this game a lot. I think if it had gone on much longer, it might have got a bit tiresome but it knows when to bring things to a close, which a lot of games lack these days. Its not going to change the gaming world but it succeeds in what it sets out to do. Recommended.
*Disconnect* ;)