I'm a big fan of the music and the artwork. I will actually disagree with others here on the cloning speed. I don't think it was necessarily too slow. I just wish that there was a visual timer that showed how much time is left. Though to address others' comments, I could see in a hypothetical future iteration there being a power-up to reduce the cloning time.
The core game loop of growing this clone army is fun, and I like the risk reward aspect of the cloning. The minimap adds a nice touch of information to know if it's safe to clone or not. I particularly enjoyed having a clear goal. I haven't beaten the game yet, but I genuinely want to see if I can beat all the enemies. I'll be playing this again later!