Ordered grinder an what I got was an exhaust fan. Contacted vevor and sent them all the info they wanted and was told I would have to wait 3 to 7 days for someone to contact me. 3 days later they refunded my money with no explanation I would have reordered it but the price went way up.they could have just sent me grinder and I would have been happy. The price was great so I gave 4 stars but gave 1 star for ease of use,features and quality. As for customer satisfaction 1 star there.