Unlike other reviewers, I only walk on the paved road or the treadmill, so I cannot speak to any problems on other surfaces or to any problems with Reebok customer service.  I can only tell you that in my experience, these babies work very well.  I typically overlook the hype on "health" shoes, but I read a very nice article where the testers took several different types and gave them a go.  These shoes rated so high that I decided I needed to see for myself.  The very first day I took them out, I noticed right away that there was a very different feel to walking in them.  While it is not exactly like it, it feels similar to walking in sand.  I thought it was comfortable, but I did not feel like I had been working places not normally worked, until the next morning.  When I woke up it was obvious I was a little sore in certain areas and that obviously these places were not getting much of a workout at other times.  I purchased the black pair - a break from my usually white trainers - and am pleased to say that they look rather nice with my typical workout gear.  I can also wear them to the grocery without any worries that my style has suffered.  I have had them a few months now, and I certainly feel they were worth every penny as I have seen the results myself.