In reply to bouldery bits:
I've had a pair for 6 months and mostly wear Booster S, previously instincts, vapors and occasionally anasazi's.
Fit is like other Scarpas in that it's on the higher volume side so suits my wider feet, but fractionally narrower at the forefoot compared to instinct/vapour. I find the heel totally insecure compared to other scarpa shoes and have heard the same comment from another climber.
More supportive out of the box compared to say the ultra soft drago but softens up fairly quickly, I'd say softer than the booster or VSR once bedded in.
It is a thin sole so don't expect longevity if you use them regularly. I found where they excelled over others was biting into little crystals on overhanging Dartmoor granite, but unless I'm climbing at my absolute limit I'll prefer the booster s at most venues, probably won't replace them once they wear out due to the heel thing and how soft they end up.