Great Piece of Gear
I love these gloves. I use them a lot for biking, but they are in pack for almost all the time for almost everything during the fall, winter and spring.
Very windproof - I use them for bike rides year round, sometimes even in -10F weather for just a mile or two. Combined with a windstopper jacket or a down, commuting or riding around town or riding to campus is easy.
These gloves are also quite durable. When I'm not using them for cold weather biking, I throw them in the pack for all kinds of hiking or mountaineering. So far everything has held up fine.
I would not use these as a substitute for a waterproof glove, but in a bind they will keep your hands dry for a while while performing various activities (snowball fights, maybe building a snow fort).
These gloves are also super versatile. A good amount of dexterity makes them useful for many situations.
After a few years the finger grips have worn down slightly due to normal, almost daily use.