I love mine ... pretty expensive for a boost when compared to something like an EHX LPB-1, but I got mine used.
I use passive basses, and have the Mid at 10:00, Tilt at 12:00 and having the gain at 11:00 gives me just enough extra juice without blowing out the walls (or my speakers)!
Without the EQ activated there is some low end loss, but I found that with every boost I tried. Slightly rolling back the Mid allows me to keep my tone completely intact.
With all that said, IF I was starting all over, I would also look at just getting something like an MXR 10-Band EQ ... even more control over the tone and can boost up to 12db ... is less expensive and can be more easily found used.
