I've got them on my car and think they are great, it is a bit harder for sure but not hugely, really tightens up everything, handles superbly and doesnt feel out of balance at all. Of course it improves the look hugely as well. Have to reverse out my driveway now but normal speedbumps are OK. I found the review on Supersport absolutely bizarre and absolutely nothing like my own experience FWIW. It was also a very strange track test, I thought he was going to stall going round one of the corners he was going so slow
The ride might be a bit stiff for "normal road users" whatever they are... Rob reckons part of the problem was the Bridgestone tyres that they had just put on their car. Have another chat with Rob, seems the reviewer didn't want to give the car back, but then gave it a strange review.