I love MPIX! We usually use them and WHCC for all of our prints... Recently I had a mounted 11x14 show up that the Post Office had crushed.

I e-mailed customer service and they quickly sent another out. Then yesterday I received a bunch of damaged 5x7's - again the frickin' post office. I dropped another e-mail. I didn't have the order number on hand, but they looked it up and reshipped again. I felt bad, two problems in a couple of weeks time, but they were awesome about it. No questions asked...

I love those guys!
Okay, I'm done now.