You'll need a lot of patience and nerves to play this one!
When I first saw the screenshots from Still Life 2 i was scared. So poor graphics, both artistic and technical. Also I have to say that the places you visit are boring and off substance. Nothing interesting about them and getting bored after playing with Paloma and McPherson same scenes.
The puzzles are randomly created, not immersive at all and hard to understand what the producers wanted to give us. Interesting puzzles and difficult or interesting puzzles and very stupid implemented? Never gonna figure that out.
Enough about the things I didn't liked, now about the good stuff. The sound is good, creepy sometimes, fastened otherwise.
The story was very interesting. Continuing the "search of the killer" from the first Still Life, in this one you'll be very close to the killer many times. Also, the two characters playable are a good addition or a bad one. In my opinion is good in the beginning and bad after 5-6 hours of playing.
Drawing the line, Still Life 2 is worst than the first one, but after all is a decent puzzle adventure. You should give it a try!