I have purchased other electronics from Overstock and I have never had a bad experience with them. Their customer service/support was great when I did have an issue. I had purchased the replacement plan for I believe 2 yrs and they told me to keep and/or dispose of the item that was giving me issues and they sent out a new item (and it was a newer model with more features) for no cost to me.
The machine you are interested in has a replacement plan for 19.99, for 2 yrs - worth the investment since it is refurbished. It should be hassle free for 2 yrs at a minimum. Good luck with whichever machine you choose...