Just played the game for like an hour.
It looks good and atmospheric.
Though I've explored a lot, I cannot say I really solved anything yet
Or if I did - I didn't really realize I was. I cannot judge the puzzles yet...
I agree however that the game is rather buggy. I had to restart it for about 5 times after getting stuck in weird corners I can't get out from (yes, I'm snooping everywhere!)
Anyway, respect for the beautiful work -- let's see how it develops.
(I have to say though, despite the Myst vibe, it really isn't close to achieving the depth of Myst, story-wise so far)