Tiffany's flat looks and feels exactly the like photos. The location is amazing (down an adorable cobblestone street and in the heart of shopping, bars, restaurants etc.) We walked to basically all of the Museums, Eiffel Tower, Notre Dame etc. We ate at several restaurants within a 5 block radius of Tiffany's flat and were very pleased with all of them (good food and a great variety of genres of food at reasonable prices).
When we arrived in Paris from NY, we were expecting to meet Tiffany to pick up the keys. She wasn't available, but left the keys for us (let her know if you're not going to have phone/internet access when you arrive in Paris-we don't have an international phone plan and waited outside to meet Tiffany for about 30 minutes before we went to a spot with wifi to check our email and discover she had left the keys for us). The locks were a little tricky at first, but once we figured them out-2 full turns, we were good to go.
The neighbors we encountered were friendly and the neighborhood felt very safe-even late at night. The elevator was great to have with heavy bags. Tiffany recommended a place nearby for us to purchase paper towel, toilet paper and hand soap. The bed was comfortable enough, and the apartment was very quiet (no street noise). Linens, towels and pillows could use an upgrade, but were clean and sufficient for our needs. It was nice to have the radio/stereo system, we listened to jazz every morning while eating delicious French pastries from Gerard Mulot. Wifi was fast and easy to access.
We'd definitely stay at Tiffany's flat again for a return trip to Paris.