Honestly, I was hoping to like it, but I didn't. The clicking is tedious, and I found that spatial thinking is quickly replaced by pattern recognition. Every square in the puzzles given can be found by simply looking at a single color at a time. Ten levels feels short, but I'm not sure if the game honestly has enough depth for more.
The number one thing that bothers me is the misusage of Watts instead of Joules. Watts is the unit for rate of energy, AKA power. Also, level 20 is nigh-impossible, even with max upgrades.
It is possible. I don't say it's easy. Well, honestly, it is extremely difficult. I myself took about an hour to solve this one. Good luck :)