I have a Renzetti Traveler...one of the plastic screws broke, and Renzetti wanted me to pay around $14 to replace it. First off, the screw shouldn't have broke, and second, I think it was pretty lame for them to make that much profit off of a replacement part. Overall, the vise is ok, but after my experience with Renzetti, I really don't like the vise at all.
If you want to buy it, I'll give you a good deal on it. Or to prove a point, I would be willing to trade it and some cash for a dyna king trekker...let's see how many people take me up on that...