The apartment is sunny, with many large windows, a double exposure, and has nice views. Especially given the high ceilings, the rooms have a good volume. The apartment is decorated in an eclectic style, suggesting the interests of a renaissance man (including tech, food, art, music, literature, comic books, wood working, and languages.) Large (as Parisian apartments go), well-equipped, and could scarcely be better located. Manu was easily available via email whenever I had a question or concern. Pretty much a perfect place to stay in Paris, to my tastes.
Three potential drawbacks, depending entirely on you: 1) you might be the opposite of me, preferring the common airbnb that looks like a hotel room. 2) Three flights of fairly narrow stairs. Part of the Parisian charm if you're in reasonable shape, less so else. 3) The subway noise which Manu mentioned in his description. I got used to it quickly, it's not actually loud. Your mileage may vary. Other than the subway, the apartment is almost country-side quiet, on a small, rarely trafficked street.