Fantastic location on a very authentic street in Paris. Building was surprisingly quiet. It is a major city and we had no issues with noise.
We loved the unit. Great design. Good natural light. Key amenities (iron/ironing board/hairdryer) and some bonus ones, too (in unit laundry and dishwasher).
Very comfortable for 2 adults. Could fit more but it would feel a lot smaller.
3 things to know:
1) they provide no hand soap. They offer a soaps/shampoos basket as an upgrade (which we declined). If you're staying more than 3 nights, just bring some or buy some at a market.
2) lotta stairs. It's 3 larger flights of stairs up. I wouldn't recco if you're older, injured, or really dislike stairs.
3) the bed is firm. No biggie for us but could turn off others.
My wife and I loved the unit and would highly recommend.