I've had the Hold-n-Fold. It was a good too, but I used to get annoyed with constantly tightening and untightening the screw. I bought Tamiya's Bending Pliers and really like them. They're "spring" activated, so you just squeeze the handle, bend, and release. Because of the shape of the jaws, which are shaped just like the Hold-n-Fold, you can bend past 90 degrees.
PE Bender
Using the Bender
You can get the PE bender cheaper than from TamiyaUSA.
-Jesse