I have been training in Mizuno Riders for about a year, finishing up my sixth pair. There's a lot I like about them. They fit well, last about 400-500 miles, and I haven't been injured beyond the typical minor twinge here and there. I do about 60% on pavement, 25% on trails and 15% on the track.
The only bad thing that I can say is that ever since I started doing 2-3 runs a week in Nike Streak XCs, the riders feeling like I'm wearing tissue boxes.
They are still a great, functional, work-horse shoe, but I'm getting the itch to try something a little lighter and "sexier".
Recommednations?