We have a FWD 1.2 turbo six speed one at work. I'm 6ft3 and fit in it, although I don't think anyone bigger than a child would be able to comfortably sit behind me and it is cramped considering that it's not that small of a car overall.
I find it really fun to drive, although the gear stick is a bit weird. Too long with too small of a gate. Interior build quality is awful. My old Passat, which was 15 years older than this Juke, was absolutely miles ahead in interior build quality and materials. The head unit/sat nav looks outdated and the system they've built on is horribly unintutive to use.
That said it has been very reliable and the only non-maintenance item it's needed in 60,000 miles is a new battery (to the tune of a couple of hundred quid because of the start-stop system).