I was just passing through Chateau Thierry, and needed somewhere to sleep. The Campanile was ideal: comfortable and clean, but unexceptional. Located on the very edge of town, it is up a long steep hill from the restaurants and shops by the river. But there is a boulangerie and a fast food outlet across the road, and the hotel itself has a decent restaurant. The rooms are basic and the beds small, not the kind of place you'd want to spend several days, but a great place for a brief stopover - utilitarian, but reasonably priced.
The staff were polite and helpful.