We have been there for a week.
Nick is always available.
The apartment is very close to Chatelet Les Halles, the location perfect. You have everything at a walk distance.
Perfect for a couple or a small family (the child can sleep in the couch which is big and comfortable).
The only flaw is that we had to buy some commodities such as soap, laundry detergent, rags for the kitchen which we have always found in the other apartments. But save for this our experience was absolutely good.