Slow at the start
When I received my treadmill, there was a broken piece on the display. Customer Service and the Technical Support group could not have possibly been more helpful. After that was taken care of, I had trouble getting the belt to not stay centered. Again, they were so helpful from sending an instructional video link and talking me through getting the belt aligned and stabilized.
I have only used the machine a few times but am VERY happy with it so far. It is easy to use. The display is clear. The incline works smoothly. All in all, so far, a great machine! I would recommend it highly but more importantly, I would recommend you as a company!