They seem to like the game, and praise it for being "silly" (as in, not ultra realistic, gray and military i guess).
 
  http://www.eurogamer.net/articles/singularity-review
 
 "Very little here hasn't been seen elsewhere before, but Singularity has more to recommend it than simply being a polished, entertaining collection of well-executed clichés and set-pieces. It's the first game I've played in ages that realises first-person shooters can bundle in as much philosophy and as many moral dilemmas as they like, but fundamentally they're still about shooting monsters in the face, and so what it lacks in originality it makes up for in variety, pacing and exuberance. First-person shooters are always silly! Well done to Raven for making one that likes being silly." 

Bought this today and so far I am enjoying it. 
 
Decided to play it on Hard straight away, which was a bad idea.  I don't suck at FPS but I got my arse handed to me pretty early. 
 
Just restarted it on normal;p 

" Bought this today and so far I am enjoying it.  Decided to play it on Hard straight away, which was a bad idea.  I don't suck at FPS but I got my arse handed to me pretty early.  Just restarted it on normal;p  "