Baptiste's apartment is in a great location- 5 minute walk to St. Ambroise metro station (great every day patisserie right next to it) and a couple more minutes to Bastille metro station.
It is a lovely area to stay for youngsters. There is a row of bars and restaurants and the main square is bustling with lights and people till late hours. One of my favorite joints around there is 'the grilled cheese factory' serving great cheese on toasts. Bastille is not the most touristy or a particularly Parisien area but I guess thats what I really liked about it.
We didn't get to meet Baptiste but he left us a note with all the help we could need. He was also very prompt in answering all our texts. The apartment is pretty spacious for a couple, he has a cool book collection and a nice music system with bluetooth connectivity. We would curl up on the couch with some french wine and music to unwind from the daily tiredness-perfect end in the perfect apartment. Although the apartment has a little damp smell when you enter and it stays on your clothes but you cant feel it after 5 minutes. Overall we had a great time and the apartment is great for its price. I would recommend it.