I've got a 9' 4wt Pro series and think it's great. When I bought it the salesman told me it would cast very similar to a Sage SLT, a $600 rod. I haven't cast an SLT but my TFO casts amazingly well for $139. My only gripe is the hardware . . .that's where they save money. The cork is cheap and the guides look like they won't take much abuse . . .but with a lifetime warranty I can't complain.
I cast the 7wt Jim Teeny series at the Denver Expo last weekend. I will be moving to Seattle in a couple weeks and think that rod will become my salmon/steelhead nymphing stick. The hardware on that rod is a major step up from the Pro series . . .nice anodized reel seat, oversized guides and a nice clearcoat finish.
I also own a couple of Loomis GLX's and absolutely love 'em. If you're after the best rod available, spend the dough and buy a Sage, Loomis, T&T, whatever. They are works of art. If function is your goal, get a TFO.
TP