We spent 2 weeks in that unit, and it was great for 3 reasons.
1) Outstanding location: The 10th arrondissement is such a great place to be. First, not that many tourists, so it is an ideal area if you like to live like the locals. You will find many supermarkets as well as smaller merchants and "farmers markets" within walking distance. Too many "boulangeries and patisseries" to count (Julhes and baisers sucrees being our two favorites locally). A wide variety of restaurants, from bistrots (Brune), to Indian (Yasmin), to kebabs (Daily Syrien), to Italian pizzerias (Papelli) and French traditional (Bouillon Julien). More importantly, if you like to walk, you are pretty much 30 minutes from so many places, like the Opera area (with the big shops like Les Galleries Lafayette, or rather Lafayette Gourmet), Ile de la Cite, le Louvre, etc. If you don't like to walk, this unit is right next to Strasbourg Saint-Denis, which is a super convenient station.
2) Outstanding unit: Paris is old. Buildings are old. Units are old. But this one was beautifully renovated. The owners made it very convenient. Fully equipped w/ washer/dryer, washing machine, espresso machine, giant toaster, etc. Tons of glasses and plates. The sofa bed is certainly the most comfortable one I tried in a long time. It feels like an actual bed. So there is truly enough for 2 couples or 1 couple and a kid (like us). It is a bit tight on space by American standards, but we were fine once we moved some chairs to the side. And this unit is unbelievably quiet. You will actually "hear" silence at night. Wifi connection was fast. I did wish knives were sharper or that a knife sharpener was provided.
3) Outstanding owners: Rachel was very accommodating when I mistakenly reserved one day too early b/c I didn't account correctly for the day "lost" in the plane. No hassle. No complaints. She canceled and I re-reserved. Romain, who welcomed us and let us in, was very friendly, helpful and polite. Rachel answered my questions promptly through VRBO. The way they described the unit and the accommodation was accurate. Rachel even reached out to say they were sad Notre Dame was burning during our trip. So, nice people who care. That's great.
And that is that. You can reserve in peace, knowing you will have a great experience.
P.S. We got there (and left) using Easy Go Shuttle. Affordable. On time. Free child car seat. Don't bother w/ taxi drivers in Paris!