I've had a Juke Nismo for nearly 2 years now, it's being replaced in march with a more family friendly 520d tourer.
While a very fun and quick car the Nismo in standard form can't handle the power (200bhp), the wheels light up way to easy especially in sport mode and the brakes are too small considering how fast the thing gains speed. I tried to use the power last night and the traction control just kept kicking in 1st, 2nd and 3rd.
On a dry warm day it leaves my E92 320d for dead in a straight line but gets scary when you put the anchors on.
Around town we get 30mpg and motorway barely reaches 40mpg, driven hard your looking at low 20's.
Wouldn't mind trying an RS as it's meant to have bigger brakes and an LSD which should hopefully help get the power down and stop you quicker.