I am pretty sure Hampton Inn has a 100% money back guarantee. I have to say, they are our favorite moderately priced chain. We have stayed at Hampton Inns in at least 6 or 7 different states, and they are always clean, and usually have nice pools. They also have a very nice free breakfast every morning.
They are owned by Hilton by the way. If you have a Hilton Honors card, the points really add up.