It was better than I expected. I had read that it was more like a demo than a game and took less than an hour to beat. With those expectations I still bought it and was very pleasantly surprised.
The mysteries were interesting, the mechanics solid, and it took me almost 3 hours. There were some annoying spots where I got stuck on mechanics I didn't understand or contradictions that I either tried at the wrong time or that didn't seem like contradictions at all based on my reading. All in all though, I am glad I tried it.