We had a lovely stay at Céline’s studio. Finding it was a bit of a challenge, but Céline and her mom provided detailed instructions. The studio was very clean. Basic amenities are provided, but not much else. If you have any mobility challenges, I do not recommend this place, especially given that the shower is tiny and raised and is only accessed by a footstool.
It's located in the heart of Bastille, which is a lively neighborhood with stores, bars, and restaurants, but the studio itself is set away from the street. There is a lot of nearby public transportation, which means you hear some rumbling from the metro. If you're there on a Thursday or Sunday, check out the huge open-air market. I also highly recommend having a meal at Chez Paul, which is just a few minutes' walk away. It has a great vibe, is affordable, and the food is amazing.
This is a great place to stay if you're looking for an affordable, no-frills, well-located place to stay while you explore Paris.