I have the renzetti traveler clamp and saltwater pedestal. Although the jaws can't compete with some vises, the rest of the vise is excellent and if you have the cam version the jaw concerns are negated. After countless flies, I re-habed the parts for the original traveller - it cost a couple of bucks and it's as good as new! Sometimes it just pays to ask your local fly shop, they had the whole parts list on hand.
Recently more models have come on line, perhaps a vise consumer report is due...