Agreed with above. I usually use Mpix. On my calibrated monitors, if I hold an Mpix print next to the screen with the same photo, pretty amazing. I always select no auto leveling, or whatever their auto "enhancement" is called. What I see is what I get and have never been disappointed.
Very quick turnaround, and everything shipped FLAT, boarded, sleeved, and padded for sizes like 8x10. 11x14. Their shipping dept is A Plus. Unlike another service that shoved 20 prints into a small mailing tube and I had to pull them out with freakin needlenose pliers.