I ordered a textbook from them which took over a month to be delivered, and I had to buy a replacement before I ever received it. Was trying to save money, ended up paying double. I thought, surely I can't blame the shipping time on the seller, right? So, I ordered another book the following semester. Same story. Now they won't refund my money, even though I followed all the instructions when returning the book, and they received it. Never. Again.