I really, really like it. Here's my review:
MINI Cooper D Clubman | theSwitchback
We also had one for a few weeks over the MINI United weekend and it just grew on us more and more.
It doesn't really "go like a rocket", but I'd chose it over the Cooper because to me it feels a stronger, more flexible engine, with more character.
It's not silent either, but it's not OTT.