In US law iirc libel requires something to be factually false, correct?

So you can only be sued for libel against the hotel if you leave a false bad review with the intent to damage the business? I don’t have a big problem with that.

The idea that I couldn’t review them badly before letting them address the problem, due to some fine print that’s unacceptable.

Even having to tell hotel management about some problem is already a bad experience. You don’t get two chances.