Thanks for playing. Definitely fair criticism. I wasn't happy with the controls either, couldn't figure out a scheme that was more comfortable, but the one I ended up with is a bit confusing. Hence the colored control blobs up top, helps a little bit to keep an eye on them while playing, but yeah, fair criticism.
Attack cooldown is indicated by whether the arm is flexing, or looks like a limp noodle. Probably not clear enough.
But yeah, hope you enjoyed overall!