We were a group of 5 people and in the pictures the appartment looked a bit bigger to us but it was ok as we only stayed 2 days.
For paris it was a cheap option. The neighbourhood is ok. The metro station is like 3-5 minutes away by walk and there is a supermarket where you can buy everything you need.
The balcony offers a very cool view. The host was also nice and explained everything we asked for. During our stay we didn't had to contact them.