Sebastien's place is in the perfect location! Closer to Rue Cler, Eiffel Tower and Champ Elysees than I expected and really easy and convenient walk to the Metro stops. It is also really easy to find based on proximity to the Eiffel Tower, and taxi/Uber drivers can find it easily as well as it is on a main street.
There are a variety of produce shops, restaurants and souvenir shops within walking distance of the apartment. Location, location, location! My favorite part was the Terres de Café which is right next door. I had my morning coffee there each day.
As others have mentioned in their reviews, the steep-ish staircase could be an issue for some, but it wasn't for us. Amenities were great (stove, microwave, fridge, coffee maker, iron) and according to my girlfriend who has been to Paris before, the unit is quite large by Paris standards. You also go through two secure doors before getting to the unit, so no issues with feeling safe at all. Netflix and universal chargers provided were a nice touch as well.
Highly recommend. Would stay again.