I have the Saucony TR2's and have put 100's if not 1000's of miles on them in about 2 years. Soles are wearing now, finally, but still a great shoe nonetheless. Well I finally bit the bullet and looked for some new shoes and saw these TR6's. I guess I missed 3 models but these are pretty much the same as my TR2's. This is a good thing... if you find a shoe that works I recommend you stick with it. Fortunately these seem to be about the same quality and comfort, so far so good. The only thing that bothers me is that the TR2's came with great round laces that stretch a little bit, and these come with the newer designed laces that aren't that flexible, but no big deal. If everything works out, they should last another 2 years of every day wear and running 6-12 miles per week. My favorite shoe company!
As a side note, if you're ordering these without trying them on first, I would try a half size larger than normal as all of my Saucony shoes usually run a bit small. Hope you're happy with them.