I looked at the demo ACP last night real quick before bed. It looked a little off putting, but then, I didn't spend a lot of time on it. I'm still debating what secondary software to skin for, but that's down the road a bit. Asked in Pre-Sales nevertheless.
The software is not bad looking though. I don't know what it is about IPB, but I get an ever so slight pang of distress whenever I have to use the quote feature. I have no idea why.