I use it for my small home studio or for small events together with a Roland KC-110 Stereo.
I tested the equivalent from Behringer but there is simply no comparison.
The Onyx preamps sound great. with a lot of punch and a crystal-clear sound.
What I like best is its compactness and its sound, which is amazing for such a small unit.
What I like least is that it doesn't have enough inputs, although for that I'd have to get its bigger sibling
Excellent value for money.