Pros: The location is very central and close to quite a bit. The courtyard window is also lovely. Adriano met us to check in and showed us around, which made the process easy.
Cons: Unfortunately, the place is not very clean and the photos (which are obviously very filtered once you're inside) are inaccurate. The place needs an aggressive deep clean. The shower was very dirty, mildewy, and had standing water in the drain. The hot water heater looked like it hadn't been cleaned in months, so we never used it. The entire apartment smelled musty and did irritate my allergies (which are mostly seasonal/mold). In order to keep the smell at bay, we had to keep the window open (but obviously couldn't do that when we were out). Also, it would be great to have a second fan. There is no a/c, which is normal in Paris, but a second fan would have been very helpful.
All in all, it's a good place if you won't be there much, but I wouldn't stay here again. For the price, and with the Paris metro system, you can just stay somewhere else nicer and cleaner.