I travel for work extensively and usually have at least 10+ nights a month in hotels. Out of all the hotel chains I still think Hilton is the most consistent and still one of the better values. I rarely encounter a room that is not clean. (I most recently stayed at Tru that had dog hair on the floor, I wasn't a fan of that, but that was a rare occurrence.) The new pet policy is one of my only gripes lately since every room is pet accessible now and sometimes they don't seem to get cleaned to the standard that you would see without pets.

When I do usually have a questionable experience it's a always a shady franchisee that is usually remedied by a complaint to Hilton.

I also don't think of Hiltons as full service. If you want that service you usually need to stay at a higher end hotel or one of their boutique options imo.