The game felt pretty intuitive, but some of the puzzles finished before I thought I was done.
The controls are very fiddly but I guess also hard to get right in this kind of game. I got to the roundabout puzzle (maybe the last one?) but was unable to complete it due to the top-down perspective (how do I drag pieces upwards?), and some pieces falling outside of the screen :)
Would have really appreciated a fullscreen mode to see things more clearly.