This is an extremely well located, as advertised, apartment. The space is clean, and provides you with everything you require for your stay in Paris. Two adults stayed in this apartment; one used the regular bed and the other used the sofa pull-out bed. We both found the sleeping arrangements comfortable. Having a kitchen to store food items in the fridge, and to be able to make your own meals (if desired) was also a plus for me. The inner courtyard was so beautiful, and you get to see how people who reside in Paris live!
Check in was super easy; no issues. Ji responds very quickly to questions and was very helpful.
The apartment is about a 5 minute walk to the Metro station. Another two-to-three minute walk will get you to a Metro station for a different train line. In short, you can pretty much get around Paris easily once you know where the Metro stations are.
There are so many restaurants, clothing shops, cheese shops, meat shops, fruit and veggie markets, and bakeries within walking distance. It makes grabbing some food items for the apartment during your stay a breeze, and it is fun to try the local fare! There is also a couple of "grocery stores" within walking distance for the other items you may need (spices, oils, cookies, etc.).
I would highly recommend this apartment if you want to stay in Paris for a reasonable price, and like to be in a Parisian neighborhood (rather than a touristy area).