This duplex is in a very central location in Montparnasse, with easy access to public transport. Due to it's central location it can be very noisy at night at the weekends, as there is a nightclub accross the road from the duplex that plays music throughout the night at the weekend. The apartment is nicely furnished and feels cosy, was very clean and had bathrooms. However, we were disappointed about the lack of fire alarm in the apartment- it is located on the 5th or 6th floor of a narrow apartment block so I think it is pretty important to have a fire alarm in the property. When we inquired about the fire alarm, we were told that previous guests had removed the last broken one and it had not been replaced. Not acceptable from a host. I emailed the host to express my concerns and he failed to understand the safety issue and didn't reply to my last e-mail which is just rude to be honest.
The apartment block has a very small lift, which may mean multiple trips with luggage, and the stairs are steep, so may be difficult for people with mobility issues.