I played it, wrote about it in the puzzle thread: https://selectbutton.net/t/puzzle-pavilion/293/37
As someone who likes Myst/Riven and adventure games…I can’t recommend it. If you love the environments in the old Cyan games, parts of the game are worth exploring for $10 or less, but not at the current price. The game is only interesting for the first 2-3 hours, it has poor puzzle design, and it really disrespects the player’s time.