In my experience Proform is BAD. Customer service ranges from non-existent to insane: there was zero response or acknowledgment to my customer service requests for a big problem with the machine I bought.
Luckily I bought it from a local store with a customer-friendly return policy (Sports Authority).
A couple of months later, I started getting random replacement parts from ICON Fitness (the company that owns Pro-Form, Reebok, Nordic Track, etc). I continued getting random replacement parts on a random basis for the next 18 months. But there's only voicemail to answer phone calls.
Bizarre. Not something I'm willing to spend my money on again. I advise avoiding any of these brands completely.