I have the short, two-legged kickstand. I think that after 3-6 months, its spring started to get a little weak and let it hang down a little. When I take sharp turns, I sometimes hear the kickstand scrape on the ground a little. It doesn't hit when I jump off curbs, but can scrape if I'm just walking the bike off a curb.

I mention that mostly for disclosure. Things like that can be real frustrating after you spend a bunch of money. All the same, I think the kickstand is useful & worth it. (well, i believe it came standard with my bike, but I'd have paid for it.)