If you haven't seen it, it's basically this:
Several b&b owners stay in each others' b&bs, rate each one and pay what they think the night's stay and breakfast is worth.
Every contestant, without fail, becomes extremely upset and offended when their establishment is criticised. There are tears every single time.
It's completely understandable why they get so upset and it's actually quite painful to watch.
Why do they put themselves through it when the winner doesn't even get a great prize? All they win is a crappy plaque!