I didn't notice any difference in driving to be honest, no knocking, strange noises, etc. However, the amber steering wheel light kept coming up on the dash, VCDS would clear it, then come back again, and so on and so on!! In the end, VW advised that i changed the steering rack, no other way to clear the fault as far as i know.....i would seek a number of different opinions though!!
I think early Mk V's did have issues with this, but no recall!!