Sure it was a good time pass for me. Although yeah I am kinda good at enviromental puzzles.
I played quite a few games like these which were longer and hard. Also I like point and clicks too. It probably could take 4 hours if I were a casual xD

House of Fata Morgana is incredible experience and I would gladly give them same amount money for another game. Luck is on my side though! Its almost sure that they will do translation to a prequel I hope that they won't be late and it will appear before the end 2016 on Steam. I loved every inch of the game once I've gotten myself into it. And it was unexpected because screenshots were not that appealing. And I probably wouldn't buy it either if not for the tags on game. Sometimes games have that mystic charm around them which you won't see at first glance unless you play it yourself :P