Oh fuck yeah... After not watching a single anime for a few months I've watched all 23 episodes of Ergo Proxy in 1 day... I'm goddamn crazy. This anime is soo... Incredible. I really don't want to explain it but I'll just say: this anime has a very interesting story! And it takes alot of effort (imo) to completely understand it at start.
I beat you. I watched ~25-30 episodes of bleach in one day. That was back when I started the series...Now I'm at 226 and I watch like one a week or so.