I've been using this ROM for three days now. It's cool to have the ICS features like task switching, the vastly improved Gmail, and the revamped homescreen. The interface is fluid, and WiFi and GPS connect quicky.
But...
...the battery just drains too quickly. Even with the phone's screen off and no processes running, I'm getting about 10 hours of light use until it's dead. I could go a day and a half on the Liberty ROM. The battery life of this one is about the same as the CM7 ROM. I'm switching back to Liberty 3 V2 for the battery life.
Besides Netflix not working, the most disturbing thing was that, when I called myself from another phone it never rang. It "rung" from the calling phone's perspective, but it went to voicemail without any kind of notification. It may be a fluke, but I can't risk it.
Maybe I'll revisit in a month or two as the beta progresses. Thanks for the work you've put into this!