Fairly good voicework
Syberia 1 itself was fairly short and you really need Syberia II for the story to finish it properly
Some puzzles are way to hard
Puzzles are uninteresting
Doesn't take advantage of the unique mechanical theme to deliver true mechanical puzzles.
Pixel hunting problems particularly
Kate can't 'teleport' to different locations
My overall impression:
I was very impressed with the artwork, character and plot which were all tightly woven into the story. Unfortunately what let me down was the actual gameplay/puzzle part. Puzzles are either very simple or just perplexing. When combined with the fact that some hot spots blend in a bit too well with the background art it make them rather poor. Why didn't they create some really cool self-contained mechanical puzzles like The Incredible Machine? I'm really not sure.
Also you can't skip to locations and have to slowly wait for Kate to run or walk back to where you want to go.
About the 'Collector's Edition'
Surprisingly there aren't many reviews on what the Collector's edition is. Well, the collector's edition itself combines the adventures on a single DVD and includes a making of video. That's it. The case itself is made of paper as well. Overall it just feels more like 'Syberia Budget Edition' rather than something to be called the 'Collector's Edition'. It is priced as a budget title but I was hoping for something more. Maybe a compilation of artwork or something or even just additional wallpapers on the DVD?
Personally, you may as well buy Syberia 1 and Syberia from GOG.com because at the very least you can get some better extras like the soundtrack.
I do recommend that the adventure gamer buys it because it is still awesome story but the poor puzzles make me rate this entire adventure a 6.5/10.