Great help and (though a bit slow) customer service. I’ll use them again.
I had initial problems with a photo book I had submitted to Blurb and getting their customer service to respond to the issues. In the end, they came through to make everything peachy-keen and resolved the issues in question. I’m giving them 4/5 because they took so long to get back to me (two weeks) and need a more responsive customer support process. Other than that, no complaints.