I am totally loving this game

I have to say, making Isaac Clarke a speaking character with his own personality was a great choice, and very smart. By doing this, a lot of moments become that much more involved, and certain sequences would not have had any were near the impact they would have done (if even possible) if he was a mute character.
Gotta say that the improvement in graphics was quite a surprise to me, the level of details was simply mindblowing. The attention to detail really stands out, really bringing 'life' to some of the levels (seems wrong to use that word in context of this kind of game), especially to some of the areas in Chapters 5 and 6 (you probably know which areas I mean

).
I like the changes that have been made to zero-g movement, the armour upgrade system and some of the weapons (I find I'm using the Pulse rifle a lot more than before), and the mix of the new and the old baddies is very well done in my opinion (though those new puker/spitters are REALLY getting on my nerves).
Currently still on my first playthrough, doing it on Survivalist difficulty, stuck on a particular room in Chapter 13, it's driving my head in...
Has anyone tried the multiplayer yet? My internet's been up the duffer recently, so not tried it, plus the single player is much more what I'm really interested in anyway.