So far, so good...
- Familiarity: I've used it several times
This is the first time I've run clipless on my mountain bike, and other than a few tip-overs where I forgot I was clipped in, it's going well. After a few rides, they have gotten easier to clip out of, but I'm not sure if that's due to the release mechanism loosening up, or the cleats wearing down (they seem VERY soft - which according to the product description, was intentional so that they wear instead of the pedals). The orange color adds just enough flash to your ride. As an FYI, the spindle is totally round, so plan on your pedal wrench being useless during installation. You'll need a big ol' allen wrench instead.