They are excellent. I have a Gunfighter + MCG and the MKIII T-Rudders. Both are accurate with a feel of movement that far surpasses the Warthog. My last setup for several years was the Warthog and I am still using the throttle but will buy the VKB TEC as soon as it is up for pre-order. The Warthog is a good setup in its own right, but this is just better.
My only issue with VKB is that while they have their own programming software, it's GUI is--to put it as nicely as possible--rather cryptic plus there is little to no meaningful documentation at least in english.
If they could redesign the config software to be a bit more user friendly or at the very least provide documentation then they would be top notch in all aspects.
I can only echo Pugio’s comments. The hardware is top notch! The software, while undoubtably very powerful, is arcane and the documentation is sparse.