Could have been amazing, but execution lacked on many areas. When we arrived the receptionist asked if we, for one free glass of champagne, would waver getting the rooms cleaned for the 3 nights we were staying. When we politely declined, as we prefer a fresh room to one glass of champagne, the receptionist was clearly insulted - not the best start service-wise. The sheets on the top side of the duvet had small brown spots (?), some black mould in the shower, and the breakfast was quite mediocre. I travel a lot, and this was subpar for a nice, french hotel. When we ordered an omelet, there were 4 possible fillings, and I ordered the two - and received an omelet with the other two. My friend ordered mushrooms, and received one with ham.
There wasn't anything horrendous persé, but enough small things for it to take away from the experience.
The area and location though was perfect and Champagne is a wonderful area.