Fantastic, central location that feels tucked away from the hustle of Arc de Triomphe, even though it's only a few minutes away. Communication with Livia was easy, her place was cozy and clean. I see that other guests mention the small bathroom, but I'm 5'9 and didn't find it a problem at all. Shower was nice, bed was comfortable.
You can hear the people next door quite a bit. If you're a light sleeper, bring earplugs. That's my only suggestion for future travellers!
Overall, Livia's place was exactly as listed. Thank you Livia.