Daedalic Entertainment is pretty much our last hope for old-school adventure gaming...
The art style is great and would have taken a long time to create Im sure. The quality of the musical score suprised me, the quirky odd music is really well done and fits the game world well. The voice acting is not top notch but certainly good enough to carry the game. Even though, as someone else already said, the bitrate of spoken dialogue is for some odd reason very low. It's very noticable during the first minutes of your play session, after that your brain is busy and it tends to move into the background. Still, there's no excues to have such low quality sound samples.
The humour in this game is a mixed bag. It's mostly good. At times I was actually laughing out loud and the humour reminded me a lot of Monkey Island. At certain other times though the jokes really fall flat on their face and you wonder why nobody cut that particular part out.
The only other thing that could be improved on is maybe the difficulty. I don't like adventure games where the solution to progressing is so unlogical that you get stuck every time you play, but in this game it might just be a tad too easy. In a lot of situations it was too obvious what needed to be done.
The storyline is actually interesting and I'll be curious to see where it goes in the sequal "Chaos on Deponia".