I often break watches because of my activities. Whether I smack a tree, a rail or the concrete they always break but not this little guy. I wanted something small, simple and light so I didn't notice wearing it but more importantly tough. This thing is all of those and more.
The water resistance is also a nice perk because when I'm snowboarding I get plenty of snow inside my gear from some of the gnarly wrecks. Its nice not having to remove it when soaking the soar muscles in the hot tub afterwords. It has not light but thats just one less thing to worry about breaking.
Only downside, as others have said, it does not keep time the best. It does pretty good but after a few weeks It's off by a few minutes.