Very poor customer service. I purchased an e book (EPUB file), and it won't open on my nook or on my computer. I sent a message to the link that was included in the download e-mail, and I got a terse reply back that they don't support tablets and they are here to help. I don't know what they mean here. It's a nook tablet, not an ordinary tablet. Nook tablets are supposed to run EPUB files, just like other nook models. No offer to even refund my money. Don't purchase books or music from this company, and tell anyone you know who wants to sell e-books or music not to use this service. They don't appear to know what they're doing.