DSCL?
I actually got 2 10x8s done of the same image. One at Ilford and one at DSCL. Took them into college and gave them the pepsi challenge to the folks there.
I'd say around half reckoned the DSCL prints were better than the Ilford ones, and once people found out the costs of DSCL vs Ilford, it became a no brainer.
If you're selling your prints, I'd say send the same image for printing at different labs to see how they come out.
DSCL prints were sharper than Ilford, and even though I presume they were done on a colour printer, there was no discernable colour cast.
However, personally I preferred the Ilford prints as that softer print feel worked better with my images than the DSCL "perfect" prints.
Certainly worth a try for the small sums involved.
Ian.