As other reviewers have said, this place is great for solo travellers. It would work for couple too because I think the bed expands to a double but maybe check that. Definitely stay here if it is available. It's more convenient than a hotel and so much cheaper. Much more convenient and comfortable than a hostel too - you'll sleep so much better.
The apartment has everything you need. Basic cooking is possible. The wifi is really good. The shower is good too. There is storage space and hanging space for clothes.
As the profile says there’s a decent number of stairs and it’s quite a small stairwell but just about big enough for a suitcase. The shared toilet isn’t a problem and it’s kept clean. The building is very quiet and you can’t really hear the street at all.
Yanina was super nice and helpful and communicative and gave tips for living in the area and in Paris generally. A perfect host.
It’s a really really nice neighbourhood. There is a popular boulangerie literally right below the flat. There’s another great one around the corner along with quality proper Parisian food shops. The boulangerie downstairs is better for bread but the one around the corner has better pastries. You’ll have to go further out for bars and restaurants and nightlife because it's a wealthy residential area. But there’s still some within walking distance - Passy is nice.
It’s 5 minutes or maybe less to a well connected metro station which will have you from the apartment to any of the main central destinations in 20 minutes or so (usually with one changeover). The apartment is also like 10 minutes walk the main square looking over the Eiffel Tower so you can get some good late night or early morning photos and visit when it's less busy. The park to the west is great for running or a quick escape from the city. So the location really is top.
I loved it and it will be the first place I look for when retuning to Paris!