So far I would give it one star. I bought two rather expensive lamps from them. When they arrived, one was missing a part. I emailed them directly and asked them to send me the replacement part. Two days later I received an email saying they can't help me, but told me the lamps were under warranty by Jon Gilmore and gave me a customer service link. I clicked on the link and went to the site. There is no way to contact anyone via phone so I was forced to email them. I have yet to hear back from the supplier.
I have since emailed Woot again describing my problem and have requested that they intervene and contact the supplier. I will wait to see if I hear from them. If I do and there is a satisfactory resolution, I will change my rating.