We have just got back from a lovely long weekend in Paris and staying in Claras lovely apartment.
Plenty of hot water in the shower, good WiFi connection, comfy bed, plenty of space and the rest of the amenities available which were more than adeuqate for us. As others have mentioned, you have your own entrance and exit to the apartment but do have to walk about 3 paces across Claras kitchen area to then get to the door, steps and lift to get in and out of the building, we did not find this a problem at all, we never saw Clara when we exited or entered the apartment and even if we did I don't think it would have been awkward as Clara is so delightful. The lift in this area is very small, but provided much hilarity when we saw and used it, and it was a welcome addition after a long day of walking!
Clara was a delightful hostess, excellent and quick communication through the entire process, very friendly and always happy to provide information to help you through your visit.
The apartment itself is very well situated. A maximum of 5 minute walk from mainline station that connects to Gare du Nord for the Eurostar and Charles de Galle airport. There are plenty of bus stops within stone throw distance going to various places and several Metropolitan lines again about a 5 minute walk. There are plenty of cafes in the area and a Monoprix supermarket a short walk for grocery shopping. We didn't use the public transport system ourseleves preferring to walk and Notre Dame is a 30 minute walk, Eiffel Tower an hour, with the other tourist apots being inbetween. A 15 minute walk to Montparnasse train station which takes you to Versaille is also easy to achieve. A less well known attraction are The Catacombs which are 3 minutes walk away and worth a visit as you will never have seen anything like this and unlikely to do ever again.
If we ever return to Paris, we would certainly look and hope that Clara had availability to host us again and would absolutly recommend to friends and family.