Thanks to the heads up from the original poster, I got one of these. Take my comments with a grain of salt, since I'm a reformed guitarist and beginning bassist. Mine has the quirk that if you adjust the master volume whilst playing, it crackles. If you adjust it without playing it's fine. I think I can live with this since quite a few people have reported this and there's no guarantee a replacement wouldn't have the same issue.
I tried this first though phones (Beyer 770) with a Squier Bronco newly strung with Labella flats. The amp set flat sounds quite modern which I was expected. I wanted things a little more bassy so I ended up with Mid at 1.6, bass and mid at 1:00, and treble at 9:00 or so. Input gain at noon and beyond added a nice texture to things. The comp I didn't mind at 9:00 or so, but I didn't spend much time with it. Low enhance button sounded decent too. I thought I didn't have a speaker to test this with but looking at the Bugera, it has a mic level line out and I have an SR Jam 100 acoustic amp type thingy. Hmm. So I tried it and it sounded ace. The gain was at 12 and the Master all the way down and it still passed sound to the amp. Obviously, I can't push this at all, but I at least confirmed that it's working OK.