Really enjoyed it so far, haven't finished it yet but definitely will. Controversly, I enjoy the fact that the level difficulty doesn't follow a curve like puzzle games usually have it because most puzzle games tend to be boring for the first 10-20 levels and when it starts getting interesting most of them are already over. With this one you have challenging levels right from the beginning mixed with some very relaxing ones that help you to not feel like a stupid looser.
The only thing that I find lackluster is the description. The clone didn't behave the way I expected it to from just reading the description. "Your clone will perform all moves you make starting with your first." This should be changed to "Your clone will repeat all moves you have made in this level, starting with your first." - Present perfect instead of simple present tense, since it does in fact not start with a present action but instead with a past action :)
tldr: Great game! Reminds me of school days spent on kongregate.