I'm relatively new to game playing so don't bring the sophistication that some reviewers do (eg, their fluent use ot the gamers patoi). However, I feel that the animation is great, and I liked the character of Kate, whose NY street savvy was not up to her encounters in Europe: she grows through this movie. The cell calls were annoying at first till I saw how they revealed her growth.
I was put off by some of the accents (why did Helena have a passable Russian accent and yet the old wino cosmonaut have an American one: perhaps a subtle joke!?) I'm getting used to lots of pixel hunting in these games (eg, as in The Longest Journey), though finding it annoying at times. For the most part the clues were fairly self-evident, but some were very obscur and seemed irrelevant to the plot at that point (eg, why on earth would a "telescope" key fit the door to the Voralberg estate?). Some of the dialogues drive one crazy (eg, between Kate and obessive-compulsive Oscar) but the guidance menu was useful (eg, Mission). Not sure I'd bother with the sequel: like movies and novels, sequels don't usually cut it for me. I think that the maker of this game was poking fun in many different directions and I enjoyed that.