Gameplay and goal is simple, nothing to complain.
BUT! Difficulty ruins my gaming experience totally! First level was simple, no obstacles, just straight forward. Then happens second level. I tried it many, many times and thought "holy shit, I can't even imagine the third level". And finally after million try, the third level.
I tried it couple of times and throw the white flag. I surrender. Too much too early!
So I recommend to make maybe 5 first level easy to handle and then those motivation killers when you mastering the gameplay.
But great idea, don't get me wrong!:) keep it going!