I just got these pedals, after having managed with a twist joystick and/or autorudder for years.
I'm very impressed with how much easier and more realistic the taxiing is (after some mucking about to get the brakes to stay off), and quite disturbed at how hard I found it to keep turns in balance (some serious practice needed I think).
The thing that bothered me though (and I had fears of this before getting the pedals) is that my chair (quite a normal desk chair) is quite vertical and I support all my leg weight on my feet when sat there. This makes it hard work to operate the rudder for extended periods, since I have to lift some of my leg weight off the pedals.
Has anyone else found this, and what solutions are there (I was thinking maybe a chair that reclines a bit more)?