Nice and Light, solid deal
Went from an older Giro Pneumo to the Prolight. Fit is similar, the Prolight seems a bit more bare-bones in construction, padding, straps, but perhaps in a good way. It is definitely lighter. I like the elastic properties of the head cradle system as opposed to the regular Giro brain lock (or whatever they call it).
After looking around at helmets at my LBS's that retailed for 200-250, I was pretty happy with this deal on Bonktown.