I have used them, and I love them. Sending cards from Paperless Post is the best. James and Alexa Hirschfeld, an all around talented and smart brother and sister duo, started an online card sending company that is economically chic. Whether it is an invitation, announcement or holiday card that looks custom printed, this service gets your message across in a matter of seconds. Why wait a month for letterpress custom order cards when you can use this zippy mode? You buy "stamps", choose from custom tempates to create your vision and make an email address list. Then the receiver gets an email, clicks on an envelope with their name on it, and boom, message received!