I bought this so that I could walk while I'm reading, or other things that don't require me to sit at my computer -- just so I'm not sitting at my desk all day long. It's fine for walking -- I'm not surprised that some customers find it a bit too flimsy for running. The band doesn't glide particularly smoothly. The manufacturer recommends using some silicon spray to ameliorate this problem, but I haven't gotten around to trying that yet.
- How is the quality of the product? fine
- Was the product free of any manufacturer defects? yes