So far so good.
I haven't had a real need to use this yet, but i've owned one previously and got a lot of good use out of it. The product is great and my only word of caution would be that when you're opening the end with all of the bits, or swapping out bits in the snow, it would be very easy to drop them all and never see them again. I actually stuck a couple of small magnets on the wrench tool so that for the most part, my bits are stuck to it when I pull it all out. Pick one up cause they're inexpensive and useful (plus they can put you over the $50 free shipping limit).