I have and use a Joe Meek FloorQ. I was happy to see the Joe Meek compressor in a pedal form, as I have several VC1Q mic pres that I used on bass for long time. I am very happy with the FloorQ. It has the JM sound, big, full and adjustable. It has plenty of controls available, and does get punchy. Of course with more controls, you need to be a little more patient, tweak and listen. I also have a Trace Elliot dual SMX compressor, Aphex punch factory, Demeter Compulator and EHX Soul Preacher. Each compressor has it's own voice and attitude, and to me a particular time for it's use. I mainly use the FloorQ in the studio and rehearsals at home. It does not run on batteries. However, you can just about plug any adapter in regardless of polarity and it will work. I wish the labeling on the front panel indicated real values. Such as the controls are labeled 1 to 10. No actual indication of value the control adjusts (attack, release, slope). Just tweak and listen, and as they always say, if it sounds good.... it is. To compare to other compressors that I have, I like single knob compressors also, set, forget, easy to setup and go. I use those for subtle taming or when playing a gig. Just set and go, as I usually don't have alot of time to setup and discern several controls. I have alot to contend with and remember, as it depends which bass I am playing (out of 14 basses, all have different controls to remember), which rig (out of several) and all react different upon combination of bass, preamp, amp, cab and venue. Simplicity has it's benefits and is underrated. The JM is nice because you can dial in what you want. The single knob comps, may give up a bit, squash a bit too much on peaks or not enough, or just not react evenly across the fretboard. That's where the JM or even possibly the Trace comes in. I too am interested in the Diamond Bass Comp, and the FEA Labs and the Demeter Comp Pro, with attack and release etc. etc.. The lists goes on and on. I was so close to buying an FEA, then went and played through my rig and all my compressors, and came to the reality, I really do have the compression thing covered..... for now, we'll see about tomorrow....... Lapicide