The location: perfect: close to metro line 4/6 and rer B. Easy to get around by metro and train (or taxi if you prefer it). Lots of restaurants and shops in the neighborhood.
The apartment: amazing view, very clean, nice bed, everything you need is there. Yes, the toilet is in the hallway, but not a problem for me. I loved the balcony to watch the sun set at night.
The host: very nice, was very helpful, answered all my questions!