I love it too! We watched it more than once when we got it (from Netflix) which is rare for us grownups in the house, and I liked it so much I bought it. My husband enjoyed it too. My kids were sort of neutral. Never met a Roald Dahl adaptation I didn't like. Same thing with Wes Anderson movies so its a win-win for me!
I even quote it sometimes..."if what I think is happening, is happening... it better not be"