Im not a fan of the Tumnus myself, but my buddy loves it in front of his Friedman Runt.
I find it kind of low toned.
I have a klone, Mythical Overdrive, and since I entered the "Marshall" world, I really haven't been using it.
I find I like the Lightspeed or even PoT in front of my Marshalls better.
Have a SD-1 Analogman modded that Id rather use as well...