I ordered Star Trek - Countdown #1 from these people and the post office claimed they delivered it to my address. I did not receive it. The first time I emailed them, they blew me off. I tried to open communication through Paypal, but they escalated it to a claim and then said that since I went that route they would only be able to give me a partial refund. They kept referring me to the post office who told me to go through the merchant. Two days later, they just started ignoring my emails. I had to go to Paypal and get a courtesy credit through them.
I have never had such a horrible, frustrating experience in my life. They were uncommunicative and just plain rude. It seems like they'd be great if everything went smoothly, but as soon as things go wrong - LOOK OUT!