If you are really going to baby the machine, this could work. The problem is they match a big belt with a small motor. Ask anyone who bought an NordicTrack EXP1000 how that worked out for them. We sell a bunch of parts for those so if you want to join the club, feel free.
For $699 you can get a much better machine at Sam's Club. You get the classic Icon service with it (as in the kind of service a bull gives to a cow) but in the lower price ranges, it kind of is expected...I certainly don't expect great service at Walmart either.