Yes! Craftsy is awesome! I've been selling with them for a couple years, and it is so easy. You do need a program that will convert your pattern into a pdf. I use Microsoft Publisher 2007. When you sell a pattern, it goes directly into your PayPal account, so you need an account with PayPal. I am more successful with Craftsy than any other website. Other pattern download sites are YouCanMakeThis.com (which has gone more to clothing patterns than quilt patterns), PatternSpot (which doesn't promote very well), and Etsy has started selling pdf downloads (but you need to know how to work Etsy, and I don't have time to figure it out, so don't do very well there).
Good Luck with your new pattern!