I actually bought this bag for my skis. My old ski bag was ripping and I was tired of checking a ski bag AND a suitcase. My boarding friends on a trip to Colorado this winter inspired me with their one-bag packing jobs, so I gave this bag a try.
I love it! It fits everything I need for the week! It woul have fit my boots, too, but they would have made the bag "overweight" and cost more to check, plus I carry my boots on with me when I fly. Still, this bag held all my base layers, ski pants, socks, hand warmers, helmet, toiletries, etc., and the removable boot/gear bags were really great for keeping me organized.
Can't say what this is like with a snowboard, but it's awesome for a pair of skis, poles, and a week's worth of clothes. Get one.