We had an excellent stay and would highly recommend this for anyone. Most importantly, this is a great location. Being extremely close to two stations meant it was very easy for us to get anywhere in Paris very quickly. There's also plenty of places to eat and explore in the neighborhood (we recommend walking to Ble Sucre for breakfast!) and even a small grocery store downstairs. It's cozy, nicely decorated and just enough for two people. Check-in was a very easy process and we definitely felt very welcomed!
One small thing to note - since there's no AC, it can get pretty warm in the apartment if it is hot outside. There's a fan and you can open the window, but since it's a pretty busy street downstairs you may find it loud if you are a light sleeper.