We played through it this weekend. tl;dr: It's funny, about 3-4 hours (or maybe more), and worth the money.

It is incredibly silly, and fantastic for it.
imho, if perfectly captures stupid british humour.

Our favourite moments involved vegan sausage rolls, mysterious sausage holes, and a very friendly mole.

You will also probably be quoting the marrow song for a while.

(And I will just clarify since I'm an admin: I paid for the game, and CoalSupper didn't put me up to this positive mention)