The only Paris Accor hotel I've stayed in is Le Royal Monceau, and I mostly stay with non-Accor hotels when visiting Paris. It's been a few years since I stayed there, but the property was lovely, and the rooms seemed fairly spacious for Paris. The room style and colour palette wasn't entirely my taste, and a lot of mirrors in the bathroom, but there was great attention to detail in the design, and it was of very high quality. I love the location near Arc de Triomphe, but whether that's a good location for you, I suppose depends on your plans. The hotel building was extremely well kept, and the facilities were very good. I would have no problem staying there again, but there's tons of competition in the high-end hotel market in Paris, which is why I've found some other non-Accor properties I prefer. If you're really wanting an Accor property, then I don't think you can go wrong with it.