We stayed for 2 nights in the apartment. The apartment itself was clean, decorated simply but nicely and well equipped if we had decided to make food for ourselves one night. The shower was great too. The room was hot (we stayed in July) but there is a fan provided to keep you cool in the evening. The building is on a busy junction which can be quite noisy at times, but with the windows closed it was much more peaceful.
The apartment is not far from Montpelier with lots of nice cafes, bars and restaurants. We also used the train station there to get to other parts of the city, otherwise it's a short walk into the city centre.
Great communication from the hosts, who were incredibly helpful and friendly before and during our stay, and were always available in person or via email if we had any questions.