My wife and I traveled to Paris for our honeymoon and stayed in Gary's flat for 4 nights at the end of the trip. The flat is in the center of Saint Germain in the middle of everything! So many restaurants and happenings nearby. Quick walk to the river as well.
Check-in was as easy as a quick text to Gary and we met right outside the flat. He is an extremely nice guy and was very thorough in showing us around the flat. He gave us many recommendations on where to eat nearby as well as made it well known that we could contact him if we needed anything at all. I did text him once during our stay asking about some nearby restaurants and he was quick to reply and super helpful.
The flat itself is very comfortable. It's modern but still has the Parisian charm. The sofa folds out into a massive bed which is very comfortable. Bathroom is big. Washer/dryer worked great.
I 100% recommend staying here in your travels to Paris. We certainly will on our next trip :D Thanks so much, Gary!