I use the Diamond Compressor and prefer it over my old EBS Multicomp. It's not been reviewed yet on Bongo's ovnilab site but it's raved about over at thegearpage and other sites. They are coming out with a bass version soon that doesn't roll off below 60Hz, has a differently voiced tone control and comes with an 18v supply for better headroom.
I found the EBS to clip when really digging in with a hot bass, but this can be remedied by turning the internal trimpots anti-clockwise. The Demeter Compulator also suffers from clipping with a hot input so I've heard. However the Diamond can be run at 9-24v, and the higher voltages give you more headroom, ideal for slapping and popping or running after wild envelope filters. The Maxon CP9-Pro+ also internally doubles from 9v to 18v and is also one of the best comps out there.
The EBS is a great pedal though, and the tubesim mode sounds really good. I could never get on with multiband mode though, perhaps I need to tweak the trimpots a little more to adjust the hi/lo bands better!