Have about 50% completion so far, and the game is really fun! One aspect that I have found frustrating though is not being able to undo moves any more if you game over, and having to restart the level completely instead.
I found a bug: if you step on a rotating mover, then move one extra space, then undo one move, the rotation of the mover also gets undone when it shouldn't do. This happened on Season 5, Episode 5.