The studio apartment is modern and clean, the bed is comfortable, and the bathroom is large, with a large shower area. It is in a courtyard building, so there is no street noise. Lamon (the housekeeper in the building) is very kind and helpful if you run into her. The apartment uses a virtual key, so be sure your smartphone has sufficient battery life (based on personal experience). An access key card is available, but if it's not in the apartment, you can request it from Gaspard. The washer and dryer are downstairs, and the host provides access if requested.
The location is great, with many restaurants nearby. It's only a block to the Pigalle metro. There are supermarkets close by and a great bakery right around the corner. Rue de Martyrs, 2 blocks away, still retains the feel of a traditional Paris street, with interesting shops, restaurants, and greengrocers extending their wares onto the sidewalk. There are at least 5 chocolate shops, a number of bakeries, and several wine shops.