i bought one older machine on ebay and the seller did not accurately describe the condition of the machine. i returned it to the tune of almost $30.00 shipping charges but did get my money back.
i have bought many things on ebay and for the most part have been very satisfied. i have sold many things on ebay and had only 1 bad review but that jerk did something to the product and would not tell me what.
when you buy product unseen you will always be taking a chance. but ebay offers you protection and promises to refund your money. so i would say give it a try.