I recently watched all of Ergo Proxy due to boredom.
I watched it expecting it to be dull and pretty much a heaping pile of faggot shit, but it wasn't completely unwatchable. The middle drags so fucking hard though, that I almost stopped watching it. I generally hate psychobabble in my animu, and this has fucking plenty of it. One of the later episodes involving Swan is almost unwatchable due to so much faggotry.
The good points to this show are the animation, which is admittedly very good, and Pino. Everyone else except for Proxy One is pretty much a giant faggot 100% of the time, and Re-l is the most worthless lead female character I've ever seen. All she does is bitch and whine and be a giant pain in Vincent/Iggy's asses.
Over all, Ergo Proxy gets maybe a 3/10, and all 3 of those points are for Pino since she's adorable.