My girlfriend bought a pair of Zanier gloves 2 seasons ago. She also suffers from Raynaud's Phenomenon. She had previously tried some inexpensive electric gloves and was totally disappointed, so I was surprised when she spent the $250 it took to get these gloves. For the first season (2005-2006), she was in love with them. She said she would have quit skiing if she had not found these gloves. Mid-way through the first season, she bought a second set of batteries because on cold days she had to turn the gloves up to their maximum heat setting, and they would not last the entire day. We ski in the Lake Tahoe area, so you know we are not talking about extremely cold temperatures.
In the beginning of the second season (2006-2007), she began using the maximum heat setting almost everyday in order to keep her hands from going into painful vasospasm. We assumed the need for more heat was because the insulation in the gloves was packing out. Swapping out batteries while on the hill became a very painful and tiresome experience for her because she would have to take her hands out of the gloves to perform the switch. When the batteries died, she had to exchange them right away because the feeble insulation was not enough to keep her hands from becoming too painful before she could reach a ski lodge.
By mid-way through the second season, the leather on the palms and finger tips was starting to crack and flake. We expected better insulation and exterior material in a $250 glove. My girlfriend only skis about 15-20 days per season.
Recharging the batteries every night before a ski day also became a hassle. The charger was designed to completely discharge the batteries before charging them. She would usually have one set of partially charged batteries and one set of empty batteries, so this meant a rather lengthy charging cycle and a swap on the charger sometime during the night. On some ski days, both sets of batteries died on her. This was probably because she sometimes was only able to get a partial charge on one set by morning.
Toward the end of the second season, she was so fed up with the gloves that she went back to using mittens and chemical heat packs. Right now, she is quite happy with that setup. It's cheap if you buy the heat packs in bulk, and you know just how much heat you are getting and for how long.
The only way that she will buy another electric glove this time is if it is not a glove, but rather an electric glove liner. That way, she can choose any high quality outer glove, and when the insulation or leather wears out, she can replace the glove without spending another $250. Extreme comfort makes a set of glove liners for $49.95 that runs on AA batteries. Maybe we will try those this year.
If you decide to go for the Gerbing gloves, we would love to hear a review after a season or two.