I use this with my XBox 360 wheel for both Forza 2 and PGR3. You'll never go back to using a stupid desk or fold-up table like I did after using a chair like this.
I have hard tiled floor, no carpeting, no padding. If I pay attention during transition periods between game play, the stem is a little wobbly but when I'm deep into racing and throwing my body every which way, I don't notice the wobble. I suppose if I want super solid stem, I could have paid for a $1000+ unit from a competitor. Not me! I'd rather save it for my next "necessity" ... three-panel set-up for my Forza 2! Bottom line -- GREAT value ... unless you have alot of free time to make your own rig.
One more thing, the mounting bracket sucks if you have a Microsoft XBox 360 Wheel. That's because the metal mounting panel is too small for this wheel. If you don't have any wood panel scraps in your garage, you'll need to make a trip to the local hardware store ... cut yourself a 8" by 18" panel from half-inch thick particle wood board, drill a couple of holes for bolting onto the pre-drilled holes in the metal mounting panel and then use some plastic cable ties to strap in the wheel to your wood board in addition to using the flimsy mounting clamp on the bottom of the 360 wheel. Shouldn't take more than half an hour to do even if you're sub-par at carpentry skills ... I'm a geek software programmer and it was a breeze for me (but then, I was highly motivated to get the set up done so I could start racing ASAP Forza 2 in style).
Edit (Feb 8, 2008):
I ended up getting a Logitech G25 wheel + 6-spead shifter so that I could practice manual shifting on "GTR 2: Realism Redefined" using my new gaming PC on the same LCD TV that I use for my XBox 360. Turned out that attaching the G25 wheel to the Evo mount panel was MUCH simpler than attaching the XBox 360 wheel.
The Evo has pre-drilled holes that line up with the bottom of your G25 wheel platform and your G25 pedal platform, though you will have to offset the Evo pedal panel mount quite a bit to the left (from the perspective of a sitting position) to where it's strange looking but not impractical from a functional standpoint.
If you have a G25, look into buying the additional Playseat Evo attachment for the G25 shifter. I don't think Amazon sells it ... I ended up getting that attachment from MaxWho.com.
I never drove with manual transmission in real life so I can't tell you how legit the Playseat + G25 shifter arrangement is. But a friend of mine who track races and is into the street culture scene tried it out and said it was pretty close to reality. He ended up "testing" my set up for hours ... I had to kick him out because it was getting to be past my bed time!