Quote: Originally Posted by
moltenice 
Well, I use Mpix and then Metallic print and love their service. The print quality is great and their packaging and shipping is perfect.
As far as upgrading your photos, what did you have in mind?
mPix or shutterfly.
I have found shutterfly yields better color results as they use the sRGB2.1 profile for their printers and mPix uses their own custom profiles. But i guess if you don't proof your own photos anyways and have them do it for you then it really doesn't matter who you choose. Shutterfly is probably a little cheaper though. mPix mettalic prints are incredible.
Here is my only print through mPix, a standout 12x8 mettalic print. Looks incredible under light, it has a glistening effect and sort of changes colors if you rotate the image under the light. Printed it for my girlfriend at the time, the ring is very important to her as it was given to her from her grandma that passed.

original print
Shutterfly is very good and I like using them for easy proofing and spot on color proofing from my computer to their printers. I have 20+ 4x8s, and a 16x20 poster from them. Very happy with their work. I'd also recommend blurb, but they don't do just single print work and are concentrated on books. But if you need to get a portfolio printed or put a bunch of pictures into a book/binder, blurb is badass.