I am originally Parisian and now live in the USA, so I may be biased.
There are 60 steps to reach the apartment in a narrow stairway. No elevator. Mr. Choi helped us with the luggage both when we arrived and when we left. Thank you Mr. Choi. You still have to manage when you want to go out (say to dinner; or go to the museums; or go shopping) and when you come back. 60 steps down and 60 steps up.
Internet is atrocious: DSL running at less than 10 Mbs. I had to work remotely and it was challenging to say the least.
The towels have seen better days.
The place is nice; bright; airy; well decorated; in a premium neighborhood. The bedroom is in the back and is thus quiet.
There is another apartment above and you can hear them when they walk. The second bedroom is independent from the main one.
I came back to Paris a couple of weeks later and decided not to rent again because the price/quality tradeoff was not worth it.