We are both UK passport holders so will get visa on arrival.
There'll be plenty of room in our carry-ons for one change of clothing, so no suitcases to wrangle at DOH will be a big plus
We did look into the free hotel thing but seem to have missed the boat date-wise, also it's not clear on the QR website if UK citizens are even eligible.
Anyhow I have a bunch of IHG points to burn so the CP is effectively free anyway...