Played the 4 first chapters and I'm actually really liking it. Not othervise a big fan of the type of game, but the immersion and overall feel of the game is good. Some really simple controls which makes the game quite easy to just start up and play. One thing I don't like is the level design and the whole concept of "find this small button on the wall in this huge room". I don't want to waste my time running around for 10 minutes looking for a button I've run by 10 times without noticing it.
But a strong 3/5 stars from me, simply because the genre overall isn't very appealing to me, and I hate running around to find stuff.