I have made total of 21 purchases from ioffer and only had one bad experience. Many sellers are honest, but there are your select few that will fraud you and steal your money.
Keep in mind that 90% of the items on ioffer are knockoffs. You will get what you pay for, and if a deal sounds too good to be true, it probably is. I purchased a pair of designer knock off boots for $115.00. Authentic, it would cost me $1700.
I recieved a small (too small for my wrist) hand made bracelet made of some type of marble stone. Total rip off.
But I have also been fraud on eBay whereby I paid for item and never received item nor refund. I will continue to shop ioffer, but only with high rated sellers with long time memberships.