Our stay here was great- wonderful location (right in the Marais District, 10 minutes walk to Ile St Louis, 4 minutes walk to metro station), well -equipped kitchen, enough (comfortable) beds to accommodate our family of 5. It was HOT the week we came, but each room was equipped with a fan, which made it bearable for sleeping.
They were very responsive with communication before and during our trip. We had one incident where the key- which had worked all week- did not work on our final evening and we were locked out for a few hours. Our messages were answered quickly and the issue was resolved (a locksmith had to come).