This is my wife's Cooper S (JCW):
We've owned it since Jan. It's suffering from the general "timing chain" rattle atm and needs a service. Once we're back from our holiday I'll get it all sorted. They ride absolutely HORRIFIC on runflats, so I'd replace the tyres if I were you. It's a nice little car, it's got decent build quality, it's stylish, can come with most toys that you need i.e. Xenons, Nav, Heated seats, Folding Mirrors etc etc.
She's really enjoying it, it'll be receiving KWs soon, remap etc So when I'm finished it'll be on point