No experience of this particular adaptation, but we had Jeff Gosling push/pull controls with steering ball on a previous car (VW Tiguan). In all honesty, I think that Jeff Gosling controls aren’t great. Thanks to advice from someone on this forum, with the next car we changed to Brig Ayd which was much better. The Jeff Gosling push pull system had the bars exposed in front of the steering column and I was continually bashing my knees against them getting in and out. The Brig Ayd system enclosed them so it was a much better installation.