I've used one, albeit a jazz bass body and it was a total swine to grain-fill. I finished it out of dogged determination but if i'd had any sense I'd have burned it.
See my Olympic White jazz with a difference build diary thread.
As an aside, the back jazz pup rout was wrong, having the size of a bridge pup, but the lug placement of a neck pup. The jury is out on the neck rout as I've not yet found time to fix the neck issue