Heinz, My car is a late 2012, 2013 model with the Mazda box and alloy inner wings so should be the same as your 2014 model.
Agree without a PR the cars body moving laterally on bends car will cause a 'lurch'. The PR stops this lateral 'lurch' and therefore removes the vagueness in the steering which makes the drivers steering input imprecise ie over/understeering
I've been out in the car today and the steering is much sharper. I'm driving faster and one handed more. Easier to drive as Robbie says whilst before I was hanging on with both hands on bumpy roads!
