Being a huge fan of the Gabriel Knight series, I was looking forward to this for years. And I have to say it... only partly disappointed.
Yes, it is not the genius game that I would have hoped for. Not as dark as I had hoped (which I was already afraid of when i saw the age rating for the first time) and sometimes, the production value was disappointing. Not in terms of gameplay graphics though. In my opinion, those are absolutely gorgeous and quite a bit more detailed than I expected! In harsh contrast to back then when I first played Gabriel Knight 3, which was not on par with games released back then.
No, what was disappointing in terms of production value to me was the fact that apparently, at least two major characters were dubbed by the same voice actress. Maybe even three. I simply was unable to get over that.
The cheap style of the cut scenes was also not something I particularly enjoyed but I was able to get used to that after a while.
As far as other things are concerned... I felt that the difficulty was alright, I actually applaud the fact that there were only roughly as much as needed interactive objects in the environment (pretty much like Gabriel Knight 2 & 3, not the confusing mass of details as in "classic" adventure games such as also for instance Gabriel Knight 1) and the story clearly has its Jane Jensen mark (which I consider to be a very good thing).
So all in all, I hope that this will generate enough budget for there to be a sequel and hopefully the few issues mentioned above will be taken care of then. I would love nothing more than to have another true Jane Jensen masterpiece in my hands.