We can not do much more simple. The eq is efficient (it deals with all inputs so it's limit but hey, we can not have everything). I have used with several keyboards, guitar Electroacoustic and even a bass, and the sound is really good, not breathing, clear rev.
It's a versatile amp trs: I use it at home (when I'm sick of work with headphones, even low volume sounds) in a small concert sound system replaces a mini gr to the 4 inputs, and as it scne return of hell (even if it does not pan shot.
I have a year and I use it all the time, under conditions trs varies.
I like this ct "sono compact and ultra-simple", a Swiss army knife that can be used at all.
150 bought on e-bay, I had not tried others but I do not regret.