I tried it and put it down after an hour or so. I didn't like the interface.
A reviewer on Reddit says: The story is quite compelling ”once you have mastered the interface and navigation challenges”. The review could have stopped right there as far as I’m concerned. Using the interface and moving around in a game shouldn’t be a challenge (unless the nature of the game calls for certain complex actions in this department, I guess, but I didn’t find that to be the case with Observation).