I use them a lot, I like it that you can store credit for a rainy day. So when I am broke and in need of a retail fix I can still buy a book. They have some qute recent modern fiction, I got a copy of the Curious incident not long after publication for the stautory £3. All of the books I have ordered have arrived quickly and in excellent condition.
I ahve promised to sell one book for every book that I buy but that is yet to happen!