I enjoyed this game very much! It was a good balance between easier and more difficult levels. The problem-solving required was a lot of fun, and the concept was fresh and intriguing. I had to use a walkthrough for almost every step of level 49 (and maybe one more, I forget) and to get a star on "planting roses," but only glanced at the video for hints otherwise.
I only gave a 9 instead of a ten because sometimes slight lag would make my piece shoot off too far in the direction I was pressing and get stuck to something, making me need to restart the level. Since I was already constantly restarting anyway from trial-and-error, the extra restarts got annoying.
The music wasn't bad, but you included a "turn off music" option so I listened to my own. I don't think that detracted from the game in any way.