I was at the Hilton on my hotel points the week before Memorial Day this year. We had a very nice room, with a king bed. It was much nicer than a typical European room. I am currently gold, but I was diamond when I made my reservation - not sure if that made any difference. It's in a nice, quiet neighborhood. About a 10 minute walk from the Arc de Triomphe. We got upgraded to the concierge level. Free breakfast buffet each day in the lounge and they were open in the early evening with soft drinks, wine, beer, and hard stuff, along with snacks and warm appetizers. There are many restaurants and cafes an easy walk away.
I'd definitely stay there again.