Edit: After working with other printers, I now realize that Jaws Tec is a great value, regardless of their lack of customer service. Give them a try.
Original: Their upload system had multiple errors and took multiple attempts to get to work. When I received my invoice, it had errors in it. I contacted them and they didn't care to take any responsibility for their own site.
Then they sent me an incomplete set of parts. When I contact them again they said since I'ordered in bulk'(I didn't want to. Refer to the first comment) that they are not able to inventory the order, basically reflecting any responsibility for another mistake.
If I had to guess, I would say that they have no interest in having me as a customer.