Has anyone used the Paper Duvet invitations? We really liked these when we saw them, but they are apparently pretty new and I just wanted to see if I could find anyone that has actually used them and see what they thought about them. My dad used to own a printing company and did lots of wedding invitations, and he is familiar with the company that does them, but not this particular style. They are kind of pricey so I just wanted to see if I could find some feedback before we went with them.