Great location, clean, spacious, and fulfilled our needs for the stay. Has a beautiful cave in the basement which is great for hosting friends. The area is safe, interesting, and local enough for folks who want a more authentic version of Paris. Tons of great restaurants, bars, bakeries, and shops to visit.
The apartment itself was great (clean, comfortable, spacious), but note the upstairs toilet is its own room with no adjoining sink. We had to use the toilet and then walk back to our en-suite bathrooms to wash our hands. Late at night that tended to wake others up in the apartment as it created noise, so just watch out for that if you're a light sleeper. Also, heavy suitcases might be tough to bring up the spiral staircase as it's a bit narrow so be careful.
The key was easy to get, in a lockbox right outside the apartment. The host was also very communicative after we checked in, which made us feel comfortable. The check-in process could have been slightly improved with earlier, proactive communication. Note that the check in time is strictly 3pm so if you have an early flight in, you should get a half day hotel somewhere to sleep before you get in to maximize your rest.
Still recommend this apartment - had a wonderful time and for the most part had what we needed!