Had a wonderful time at Sarah's! She was very communicative and made checking in and out really easy. The apartment was clean, comfortable, and simply but stylishly decorated. Balcony was awesome too! Note that it is 5 flights of stairs and some parts of the apartment can be compact (i'm a waist size 30 and found the shower to really just barely fit me). The area around the Stalingrad station can be a little bit sketch but you're generally fine as long as you don't linger and aren't flashing chanel etc (you could also instead walk from Louis Blanc or Jaurès, which are totally fine). The street the apartment is on is nice and quiet, and I was coming back at all hours of day and night and felt totally safe. You're also super close to the canal st martin which is really nice and lots of great restaurants and coffee shops in the 19th and la villete. Would stay again any time!