I'm playing on a crate bx80 right now. It's not aweful, but It's not nice either.Within certain bounds.
There's no universe where my first guitar amp, which was a 10watt Crate, would sound "great".
There is a funky distortion in the amp I can't get rid of (always sounds over driven, even at low volume) and sort of a fluffy, furry,fuzz sound.
It's impossible to get a clean sound from it.