I have the new and unimproved wooden Tandy one. It may be cheaper than the old one and cheaper than the other brands, but I'm new to this and still haven't had any problems with it. Matter of fact, I really like it.
One thing I would mention, as someone was having issues with this cutter some time ago, is that it will only cut as straight as your first edge. If you get an uneven hide, you have to cut a straight edge with a long ruler and a good knife or the strap cutter won't work.