I wish the upper elastic fit a little more snuggly (it's really flared out and big). The rest of the kneepad fits well. Luckily haven't had the opportunity to really test them out yet but I wear them every ride and they're comfortable.
I like these. They go well with the matching elbow guards. My only con is that they don't have a strap above the knee, but it works out because your boots and the other straps do well to hold it into place.