Every is perfect!
Traffic: It's so convenient that walking to the subway (line 9) in 2 minutes. You can go anywhere you want by this line.
Community environment: It's quiet and safety. Don't worry about safety problem even if you come back late.
It's also near the supermarket and post office. The bathroom and kitchen are also comfortable.What's more, our roommate is so nice. He recommended itinerary for us and helped us solve a lot of problems.
In short, it's a good experience for us in Paris! I recommend this room!