We used Shutterly for our Valentine's Cards this year.
I was pleased with the ease of use on their website. Everything was well laid out and user friendly. The process of ordering was extremely smooth and the price was fantastic!
I received prompt emails about the status of my order (receipt of order, shipment of order, etc), which was wonderful!! The shipping time was excellent; I had my cards within about a week!
I was extremely excited about the cards and how easy everything had been..until I opened the cards. I was SO disspointed in the quality of the cards.
The paper trimmer left "excess" paper on come cards that I had to take off and some of the edges were a little choppy instead of smooth. The colors were great...very vibrant and the cards looked great until you looked at the edges. Perhaps the "chopper" just needed to be sharpened and I got the "last batch" before it was.
Overall, for the price and ease of use, I would probably use them again. I don't know that I would use them for extra special occasions because of my experience, but for simple reprints and things of that nature, I think they are a winner!