I ordered 20 prints to "test" the quality before sending the other 100+ to them. Half have yellow tinge to them. I checked my originals - no yellow tint. I tried to discuss this with customer service, but the rep who responded to my email acted like he didn't have a clue. I do not recommend this service. There is no phone number and the company doesn't even put their name on their mailer or packing slip. Because of this, I suspect mpix just takes the order and has some type of clearinghouse actually print the orders and mail them out. I doubt mpix has their own lab. This is why the quality and review vary so much.