I started out with a thrustmaster F430 wheel (pretty crappy wheel, only had 180 degrees of rotation), that died and I upgraded to the Fanatec Forza wheel and elite pedals. They were a huge leap up from the Thrustmaster wheel and I used that one till it also died. I then went all out and got the Fanatec CSW 2.5, clubsport v3 pedals, and the clubsport shifter.
As you can see the two previous wheels aren't exactly great wheels to be comparing too but the clubsport stuff form Fanatec was better than I expected. I was toying with the idea of getting a DD wheel and I wasn't disappointed that I wimped out and went Fanatec.
The FFB is plenty strong enough for most people and without having the reference of a DD wheel it's impressive. It felt so smooth, there was no feeling of gears of cogs when moving the wheel, it moves very freely when there's no force. The forces felt weird at first because there was no mechanical feel or sound (with the old wheels I could hear and feel the mechanics of the wheel even just moving the wheel) it was almost like holding a fish, it felt muscular or organic in the way the wheel fought back. It was such an improvement on what I had that I lost all interest in DD wheels, for now at least.
The pedals have been more of a problem, they are so adjustable I just couldn't get them right, I was always fiddling, I bought the damper kit but I think I should have gotten the performance kit instead, the damper just slows down the pedal and it's too soft. I have a niggling feeling there may be something wrong with them but I haven't tried everything to rule that out.
The problem is now I had to pack it all away as I'm in between houses and have no where to set it up.
As long as you don't try a DD wheel the Fanatec will be very impressive. Compared to just about everything else on the consumer market it's great.