My husband and I had done quite a lot of research in preparation for a treadmill purchase, since this is our first. For the features as well as the affordability, the Proform 580 seemed to fit the bill. We went to our local Sears store and the salesperson was extremely helpful and knowledgable about the treadmills, answering each question and addressing every concern we confronted him with. We looked at some of the less expensive treadmills, but they really didn't offer the features that we were looking for, so we moved on to the Proform 580. Regularly priced at $899 it seemed to be a good deal...read full review »