I have raced with both a Logitech Momo and now Logitech DFP -- the DFP is clearly a better wheel, in all respects, expect for shifter paddles.
I think some people have misconceptions about the DFP, maybe I can calrify:
900 degrees rotation being useless:
Right, I do not ever use that much rotation either! But, I do like to chage my rotation from 420 (formula cars) to 540 for rally racing (like in Richard Burns Rally). Originally with my Momo I had problems with high speed stability -- if I set the game to have fast enough steering to make a hair pin turn, then at high speeds the cars was totally twitchy and unstable -- a small movement of the wheel resulted in too much movement of the cars wheels in the game. Now, turn down the steering in a game, and wow, high speed is stable...but now you can not get around a hair pin to save your life! :-( 220 - 250 degress rotation is fine for formula cars, but if you race rally cars DFP is nearly a must. Also if you want the real feeling of a car, 220 degrees rotation is not very realistic, is it?
DFP pedals going bad:
Early DFP pedals were bad, just like logitech momo. I have the new "Rev B" pedals with metal pots and they are very nice. Not VPPs, but no problems with spiking, calibration, etc. I drive ALOT and they are holding up fine!
Bad shift paddles of the DFP:
Yes, they are awful!!!! But you can do this, like I did:
http://j-san.com/djm/images/sp_index.php?dir=./dfp_mod
To mod my DFP like that cost me:
(US dollars, btw))
DFP wheel and pedal $100
Sparco wheel $170
Frex Adapater $130
--------------------------
$400
No cheap, but cheaper than the other high end wheels.
With the Sparco wheel and the proper shifter paddles, my DFP is really an amazing wheel. It is stiff and solid and it is even quieter now. I would submit that the DFP with a real wheel is better than all those over pricesd $1000 wheels w/o FFB! FFB used to be a joke -- a gimmick, but now with GTR, RBR, and LFS, having FFB makes for a better experience.
Also those of you who complain about mushy ffb with the DFP -- I think this is a setup problem. When I first got my DFP I also had the mushy feeling and the "hump" sensation -- this is complete gone after fiddling with settings in the logitech profiler.
Cheers,
Countersteer