I know nothing about the company -- other than my own experience and the recommendation of a multi-published author -- but so far my experience has been good. My friend, the author, has been a great help in answering the question "What do you do now that you're published?"
Simply put, her response was "Sell your book!"
One part of her advice including VistaPrint. She buys postcards (self-designed) from VistaPrint with duplicate images on the front. She then has them cut in half to serve as hand-outs -- that is, personalized bookmarks.
The prices are relatively economical. VistaPrint includes some freebies. And the service seems excellent -- I ordered on Monday, and the postcards (and 250 business cards) were in my mailbox this morning.
- Disclaimer: I am only relating my personal experience; your mileage may vary.