I thought I would throw another opinion into the ring on this device. I bought it instead of the Sansamp for three reasons. First, it was a lot cheaper, second, it has a noise gate, which I was looking for because I play a Yamaha BBG5S, which is not known for quiet electronics. Third, since the Yamaha does not have a mid control, I wanted my box to have one, and the sansamp doesn't have it. First impressions are very positive. The noise gate works great, and you can dial in a lot of different kinds of tones using this thing. I can get a super clean, fat tone, or go with a high distortion sound, which I am not likely to use very much. The EQ is great, but haven't been able to make the "color" button do anything. After playing with it for 20 minutes, I turned it off, and really hated the sound of my bass without it. I never want the two to be apart again. It can make a cheap bass sound much better than it is. Havn't tried it on my fretless yet. That comes next. Anybody else have experience with these that they would like to share?