Well...after around 40 days at the mountain i can give you my on hand experience with this product.
Out of the box the helmet is prestine, nice look and pleasant design, on the mountain this is what i experienced : I ski on the Canadian est coast (no orographic effect and very cold), because we have to wear balaclava the hot air produced by the head has a difficult time escaping from the vent holes on the top and the sides of the helmet, the cold air coming in from both opening on the side (not underneath) of the visor gets traped and fogging occurs quickly, from interm to advance skiers speed on the slope will creat turbulence incoming from those opening which will also result in watering eyes.
The helmet is warm, light and confortable but on very cold day you can hear crack noise from plastic expension (lol), the satin look on my pearl helmet shows wears and on the back of the helmet where the insulation meet the plastic the joint has started to spread, probably because the soldered joint cant sustain the cold-heat expension stress.
Naturally, by removing the visor and it mechanism you risk losing some of the screws and washers essentials for the proper functionning of the visors (not teenage proof)... well i am not a teenage but i lost one of those parts and I had to order a full set of srews ans washers at 40$ plus ship and handling and the manufacturer after 3 full weeks hasnt been able to provide the pieces to the ski store...oh and one ear piece also felt off the helmet, but i decided not to order another set of plastic plugs at 60$ set I believe.
I gave the helmet to my wife, it will fit her well for the warmer incoming days at the mountain (around 0C) and it gives me some free points on my '' beernight with the boys card''.
Dont rest your buying decision on bad or good comments on this product, my advise would be to try it first, this helmet might not be for you !!!
Bon ski !