We loved our stay in Thomas' place in St Germain. The apartment is in a lovely small block, and just one level up with a (very) small lift. The apartment really feels welcoming and like a home with a lovely set up, very comfortable and well appointed. We particularly loved the great main shower and bath, the comfortable beds, modern kitchen and appliances - including the great TV projector. The children's room was excellent, with loads of toys a bunk bed and a nice cot for our youngest who slept perfectly during our stay. Unlike previous stayers, we didn't notice any odd smells.
The location is great and we will definitely look to come back next time we are in Paris. We can highly recommend the Vietnamese restaurant Saigon Dantan directly across the road https://saigondantan.fr/en and Bistrot Le Prince Racine on the corner down the hill for eats.