Relative to hotels in the area (Makuhari, Chiba), Hotel Francs is a well priced, clean, nice hotel.
Being energy efficient, the room can get warm with an AC that isn’t very strong. But this is pretty common for many hotels, and indoor environments in Japan during hot/warm/mild weather.
The breakfast is good although there isn’t a lot of seating area and can get crowded at times.
Overall I had a nice stay.