«  Terrible! »

I use it for a year, I was looking for a natural sound for my acoustic bass as well as my bass (both already amplified via a piezo sensor).
The sound of this unit is very natural and surprising for its size. It lacks a little serious for my taste, but it is the entry level of the brand on the other hand I have never tested on an acoustic guitar.
Very good value for money all the same, I would do this purchase again. I will test many other brand models (one day or I would have money!)