I see a few Darkglass compressors on here, including @Colton 's above. I'm currently running a Markbass Compressore which has a tube and requires a 12v power supply. It would be nice to be all 9v. So I went and read the Ovnilab review, and it looks like a good replacement for the Markbass as it says "the DG has a fatter warmer sound" and he'd "recommend the Darkglass most to someone who was considering a tube compressor for its warmth or "vintage sound", but not wanting to use an uncommon power supply." Well, that's me. So I guess this would be a good replacement ...
On another note, I'm a light overdrive guy, and like my DG VMT. Does the Alpha Omega do a good light overdrive?