I replaced my my original unit with a Firmfeel #2.
The original, you could steer the car all day long with 2 fingers, including parking lot duty.
The firm feel #2, has a positive and well I guess a "firm" feel, no slop and feels like a modern sportscar. Drove mine around the neighbor hood a few laps this week and Im really happy with it.
For a direct comparison, Its almost identical in feel to my 99 4Runner 4x4 rack pinion steering with 33" tires.