I pick up next Sat, will be sure to post a goo reveiw.
I sold my JCW 4 weeks ago as it was just sat around not being used, it was a 58 plate, dark silver, leather, panoramic roof, a really nice car. Performance is so good and the noise is fantastic, hit the sport button and you can feel the difference. I love the fire cracker note from the exhaust, after a while you can pretty much time your throttle position/gear change and it will let out some superb noises, which makes so many people stop and stare, it really does bring out the childishness in the driver!
I was able to 'compare' my JCW and my GTI side by side a few times, the mini just nudged ahead in acceleration upto 60 (ish) and from there the golf would sit within a cars length.
The Mini will be a bit noisier inside but it didn't rattle, unlike my Golf......

Enjoy it, you won't regret it............. I've almost talked myself into going to buy mine back!!!