Intel (icc) Compiler?

Has anyone tried using the Intel icc compiler to compile the Radiance source? I have access to a fairly new Mac quad core box with the icc compiler and was wondering if anyone has used it. I hear some significant increases can be made, but I also hear the icc user's guide is 250 pages long. =) Wondering if anyone on the list has tried it out. Didn't see any listings on Mark Stock's benchmark page.

Robert Guglielmetti IES, LEED AP
Building Energy Efficiency Engineer
National Renewable Energy Laboratory (NREL)
1617 Cole Blvd, MS-5202
Golden, CO 80401