Wow — as good as it gets! Location, comfort, and a great host. Highest possible recommendation.
The apartment itself is terrific. All three beds are big and very comfortable. Even the pull-out bed from the sofa was comfortable and felt like a regular bed. Good A/C and appliances including fridge, dishwasher, and washer/drier. Very good shower. Tons of power outlets. Good-size unit. Clean. A very comfortable place to stay.
The location is perfect. First, it's easy to get food from great places nearby. Terrific café a few doors down (Kafeibaie, 5 stars). Great boulangerie/patisserie on the next corner (BO&MIE, 4.5 stars). A great neapolitan pizzeria a few doors down (Sorrento Pizzeria, 5 stars). A grocery store (Franprix) around the corner & a grocery/department store (Monoprix) a block away. Also, a Metro stop is about a 3 minute walk away (Strasbourg-St. Denis). And the Centre Pompidou (and the vibrant area around it, with tons of great food and nightlife) is a ten minute walk away. Meanwhile, the apartment itself is quiet with pretty much no noise at night. The area around the apartment felt pretty safe during the day and at night, too, and the building had good locks.
Last, the host had great communication with us and made things very easy for our arrival and departure. The apartment had everything we needed and you can tell that he put thought into making sure we had a nice stay.
Great experience, and will stay here next time we visit Paris if it isn't already booked!