Borrow one from one of your locals and try it out for a couple days to see how you like it. I have tied on a lot of vises covered with bells and whistles, and still prefer my old Thompson, ten years old and counting, which replaced an identical Thomspon, twenty plus years and the cam wore out (and it was cheaper to buy a new vise than a cam), which replaced a nearly identical Herter's...

And replacement jaws can normally be had for a lot less than a new vise.