I've used this amp with steel string and nylon string guitars where it performs quite well at home. I've also used it on my Digital piano.
The Microphone Channel has independent reverb control which I've also used as another guitar and blended the inputs. Separate Base and Treble and Volume controls are provided for each channel, providing good tone and balance. Feedback can be a problem in small rooms, if you don't have feedback suppressor (Sound hole cover) on your guitar.
I've not used the aux input so can't comment on this feature
There are only two effects provided (Chorus and Reverb) both have reasonable range. It would be nice to see additional effects \ features added for example Delay, Feedback Control, a selection of amp models and a Looper.