If you're asking about the Mt. Shasta Summit Century, here's a firsthand report:
http://forums.teamestrogen.com/showthread.php?t=17819
http://forums.teamestrogen.com/showthread.php?t=18018
Also, a few of us did the Siskiyou Century in Yreka a couple years back and it was excellent.
The Mt. Shasta Resort is a good place to stay, for either event (altho it's a bit of a drive from Mt. Shasta to Yreka), there are nice little 1 & 2-br cottages (excuuuse me, chalets ) with kitchens.