I love the E5 elliptical cross trainer sold by Life Fitness. It is quiet and sturdy. The controls and interface are easy to figure out. The trainer can be set up to provide a work out as hard or easy as you would like it to be. My trainer came with an out of the box "clunk" that needed to be diagnosed and repaired. The process of contacting Life Fitness to service the equipment was painfully frustrating because I could not make contact with an actual person without a lot of effort on my part. Calls went To Voicemail and we're not always returned, requiring me to Make the follow up calls. The equipment was eventually repaired under warranty 60 days after installation. While I recommend the product be aware that Life Fitness customer service is not as robust as their equipment. I hope I do not have to interact with customer service again.