As a Parachute owner I would not want to have a chin first wipe-out, but – touch wood – I have never had a chin-first crash. That said I'd rather go chin-first in the Parachute than in my normal open lid. My crashes tend to be wash-outs on corners or slow offs. On one such off at the bottom of Cave Dale I cut and bruised the side of my face and broke my glasses wearing a normal lid. I'm sure that wouldn't have happened if I had been wearing the Parachute.
They are what they are. More protection than an open XC lid, less than a full face. That's what I wanted and that's what it gives me. I've never actually heard of anyone who's had a face-slashing incident with a cracked chin guard