It'll render 360 degree driving games (Ivan Stewart's Off Road, Championship Sprint) playable, but it won't much for you on the 270 degree games (Out Run, Spy Hunter).
I'd reccomend GroovyGameGear's trackball booster kit with any trackball, but especially if you want it to do double duty as a spinner. The extra resolution will really help on games that need fine control, like Tempest.