OK, I bought one. Still getting all the build bugs out of it.

My 61cm frame weights 4.25lbs, same as my 64cm Reynolds 531 frame (1978 AD Inter-10).
CF fork weights ~720gms, same as the 531 fork for the same vintage 531 AD frame.

I built it up with low end 9 speed Tiagra brifters/Nitto bars, WTB saddle and 105 triple cranks Tiagra/Sora derailliurs.
Wheelset is my bullet proof gravel grinder disc with dyno hub, next step is a weight-weenie disc wheelset in the 1600gm range before discs.