We loved Neila's place. The location is spectacular. The Arc de Triomphe (Champs-Élysées) and the Trocadero are both 5-7 minute walks from the front door. The Eiffel Tower is a 10-12 minute walk. It is also close to a number of Metro lines; the Two, Six and Nine lines are all close. The Boissière station (Six line) is right across the street. The Victor Hugo station (Two line) is a short walk. There are lots of cafes, bars, boulangeries, and grocery stores nearby.
The apartment itself felt like home to us. Our two children shared the room with the trundle bed and were very comfortable. When my wife and I would be getting ready to leave, we would find them either playing CDs on the player in their bedroom or parked in front of the TV watching the BBC.
One especially notable feature of the apartment is the cross breeze generated by having the windows open. The apartment cools off very quickly when the living room and bedroom windows are open. It feels like you are outside breathing fresh air.
My wife and I also really liked how quiet it was. There was some kind of a party on Saturday night during our stay, but other than that sometimes it was hard to tell you were in a city. None of the constant honking and loud trucks that one normally expects staying in a large city.
Overall, I would say that if you want a place that is quiet, cool, and comfortable while also allowing you to quickly access the sights of Paris, then Neila's place is a great one.