We had a wonderful stay in this apartment. It is bright, modern and large - but also a fully equipped home with air conditioning - great for August in Paris. We perhaps most liked its location - really close to several metro stations and therefore all the sights. It can accommodate 10 people and the cost per person would be fantastic. My family of 5 needs at least 2 hotel rooms - so we sign up for a similar cost but have all the comfort of a family home and plenty of space by coming here.
We didn't use the terrace since it was wet outside on and off.
We made arrangements to leave some luggage while we explored on arrival into Paris - before check-in proper on Monday - our first day. We needed to make our arrival day count since many (all?) museums seem to be closed on Tuesdays - so plan carefully!