Well, currently posting from my G3 Lombard, and I must say I'm rather impressed. Comparing between TFF and an optimized G3 build of Camino, Camino seems to start up a little quicker, (only by a few noticeable seconds,) but TFF clearly renders things faster of the two.

Being a 333Mhz G3 with only 384MB of RAM and a 4GB HD, you can't expect Tiger or TFF to be very speedy. But it's fairly decent. I just need a bigger HD for my Lombard. (A little more RAM wouldn't hurt either.)