Built mine up at last. Will be changing the wheels for something more blingy once I've decided what I want and how much I can afford. No idea on the weight but it's lighter than than my aluminium fixed wheel commuter, and much lighter than my Litespeed Vela. Took it out for the first time yesterday over Holme Moss. First impressions are that it's much smoother than the Vela over bumpy roads. Also much stiffer and I could really feel the difference in the power being transmitted to the drive train. Descending it felt a little twitchy but I'm putting that down to either the wrong stem setup (haven't decided the best size yet) or me just not being used to it. All in all I'm very pleased with it and it feels like a significant improvement on the vela.
I had a bit of a scary moment when I hit a pothole going downhill and heard a loud crack come from the fork/head tube area. I thought I'd broken it on the first ride, but a very close inspection has not revealed any visible damage so I think it's ok. Will be watching it on the descents for the next few rides though just in case.