My wife and I spent the majority of our two-week winter honeymoon here and it had everything we needed.
Some of the highlights:
1. The view! The unit overlooks the cobblestone streets of the Latin Quarter, with a postcard view of Notre Dame.
2. If you're unfamiliar with Paris geography, the Latin Quarter is centrally located. We could walk to destinations like the Louvre, Orsay, Sainte Chapelle, and (obviously) Notre Dame. For shopping, the Marais, St-Germain-des-Prés, Les Halles and Rue de Rivoli are all walkable as well. Also, don't forget to stroll around the corner to Shakespeare & Co - one of the world's most famous book stores
3. Tons of hot water with solid water pressure.
4. The unit has a washer. This allowed us to pack only carry-ons for the two week trip.
5. Has a stove, fridge and cooking utensils.
Regarding communication, Michel was exceptional. He was very quick to respond and the check-in process was flawless. He provided all the information required to access the apartment in a timely manner.
My wife and I will almost certainly book this unit again when we come back to Paris.