I know there were old threads about this and a lot didn't like it because it was only for 2" cut binding. They've changed the tool to include 2.5" wide and also this video tells how to use the old one for 2.5". So has anyone tried it? Like it?

The binding tool I use is demonstrated in this video.
http://www.youtube.com/watch?v=ex2PajesRvU&feature=fvw
I really like using it. Joining the binding was always such a pain to me. No problems using this tool. This tool is for 2.5 binding, but certainly can easily be adjusted for other widths.

I don't have a problem joining binding (somehow). My problem is the corners. I do them all exactly the same and at least one ends up round instead of pointy.