I traveled to Paris with my girlfriend for a short weekend break. We had plenty of communication prior to arrival between Mikael and his dad Alain, who were both extremely helpful in answering our questions.
We arrived and were greeted and shown around Alain, who spoke very good English (which was a plus as our French was basic.), he showed us around the apartment and informed us about the surrounding area.
The apartment itself was beautiful, fantastically furnished, extremely comfortable and practical, we didn't spend much time there but there were adequate cooking facilities and a comfortable dining table and sitting area. The coffee maker, teabags and orange juice were a lovely touch when we arrived. The bed was very comfy and the shower was large and powerful. Towels and hair dryer were provided.
The apartment is in a great location, down a quiet street in a lovely neighbourhood, which felt very safe. The apartment is only a short walk to Passy Metro station, which was unfortunately closed for the duration of our stay but Trocadero was only a 5 minute walk away.
I would definitely stay in Mikael's apartment when I return to Paris.