Finished all the levels, I'd say it was ok - my main complaint is the move counter; the typical optimization heuristics are often not that interesting compared to the new mechanics presented in the levels, so it feels like an arbitrary constraint. I'd prefer if there were puzzles with no move counter where it would be more difficult to find any solution. I'm also confused why the ability to earn stars is tied to a difficulty setting, instead of just always allowing the 3 additional moves and giving a star if you finish 3 under par.
But the game is $2 and often on sale, so I think it's fun to pick up and try, there are some interesting ideas. The bunnies are very cute! I like puzzle games with friendly creatures <3