Vicent's apartment is absolutely great. My wife and I spent two months there in the winter season. The neighborhood is fabulous. There are many bakeries, several restaurants, stores, a handful of supermarkets, all within a couple of blocks. We strongly recommend La cantina which is at the nearest corner (~20 m from your door!). The apartment is also one block from the Metro station Pernety (line 13, which connects with all the others except 5, 7, and 11). The area is so great that Vincent (the owner) lives around the corner!
There are two bedrooms, and therefore plenty of space, which is not typical in the apartments in Paris. The kitchen is also very well equipped! Not only super-complete, but the one thing we appreciated very much is that everything (from pots and pans to silverware) is really good quality and not the usual cheap stuff that you find in rentals. The furniture is also very modern style. We liked all the decorations too. The heating system is also modern and it works very well. (I mentioned we stayed during the winter, so this was very important.)
The apartment is managed by a real-estate company. So at the beginning communications can take a while. My advice is to get Vincent's phone number asap. He responds to your questions/inquiries/etc. almost instantly. He's absolutely great! (Like I said, he lives around the corner and he's happy to come if you need him for anything. We also crossed paths at the supermarkets a couple of times, and on my way to work at the bus stop!) We had only one inconvenience, for example. The exhaust over the kitchen range wasn't working at all. Vincent's got it replaced by a brand new unit within the day! He and his wife also wrote an excellent and very detailed guide to the apartment and the area. If it's not left easily available for you to see, please look for it on the shelves. It's extremely useful, and it most likely has the answers to your questions about the apartment.