I tried a 3 axis (I think that is what is was) VR deal. My 1st lap I didnt make it through big bend at LRP (the 1st corner out of the pits).
If you dont want to make the commitment of buying a complete turn key full system, you can make your own, fairly inexpensively, with the pieces. Playseat is a good start, add a wheel of your choice (logitech), and a PC (specs are on iRacing).
Playseat Gaming Chairs
playseat.com
I keep thinking I should finally break down and do it, but I still haven't. Heck I have been to iRacings office, even (its in MA)