When I was still riding regularly, I used it without fail. I use a sigma pc-14 and I don't know how fancy or good that is, but it has the basics and that is all I need. It has some thing that I don't use or don't know how to use, but for the most part I really like mine. It helps me keep track of times, calories burned and stuff about whether I was in the training or aerobic or whatever level but that's the part I don't really know how to use.

I use mine when doing regular exercise on the treadmill also, or use to, but haven't gotten back into the habit since I have started exercising again. It's wrapped around my bike. LOL