Surprised to see so many seasoned FTers arguing 3PM isn’t check in time. It’s published on the hotel’s website.

Frankly, if my booked room isn’t ready at the published check in time, then I expect a room in the meantime and some form of apology.

Yes, elites have a 4PM checkout, but that’s not the OP’s problem.

No, you don’t not need to prebook if you expect the room to be ready at 3PM. I say this as someone who always pre books for morning and even midday arrivals.

The reality is that The Churchill is a terrible and mediocre property that people seem to forgive.