My best friend and I didn't meet Viviana but the arrangement to pick up the key and access the apartment was very easy. Like everyone has mentioned, there are quite a few stairs (about 100) so an unfit person might struggle getting up there. We loved it though…it helped us work off all the chocolate eclairs we were eating!
Talking about food, at the end of the street is the most amazing food markets (pastries, fruit, vegetables, cheese, meat…restaurants…everything!) which was so great.

It's a strange thing to mention but we found it really helpful that there were so many power outlets in the apartment. When you're travelling you have so much to plug in at the end of the day!

The bed is very comfortable and the apartment has a great outlook over other very Frenchy apartments…like like in the movies ;)
One thing to consider if you're a bigger person is that the shower space is quite small, and you would need to watch your head on the sloping ceilings. I'm only 5ft, so was very comfortable but my friend hit her head a few times, not being used to the loft ceilings.

The apartment is also very close to the Chatlet Les Halles train station which is a main one and is one of the stops that the airport train makes, which made it very convenient for us.

We easily walked to most of the main tourist attractions and loved every second of our stay in Paris.