Me and two friends spent 4 nights at Fabios apartment and I can definitely recommend it. It is super clean and cosy, very central located and offers you a fair prize to spent some time in Paris.
Also Fabio is a really relaxed host. The whole planning process was very easy. Also we were lucky enough to meet Fabio. We had a beer together and he spent his time answering all our questions and gave us some good recommendations what to do in Paris beside the touristic attractions.
So don't hesitate to ask Fabio for a stay. Very enjoyable apartment and friendly host! :)