Han Qing's place is a hidden gem. From the main train station (Gare Montparnasse)/ metro (Montparnasse-Bienvenue), I took approximately 10 minutes to walk to his place.
In addition, there are many restaurants and cafes around the area, some which closes around midnight.
Lastly, Han Qing is a nice guy. I had a problem opening the door and he came back from meeting his friend just to help me with the door.
Overall, I would recommend him. Thanks Han Qing!