Overall, we thought this place was wonderful. It has really big shutter windows throughout, a well equipped kitchen and the bed is ridiculously comfortable!! There's also towels and a hairdryer which meant we could pack a little lighter.
The location is also great and very central which meant that we could walk most places within an hour. Republique station also has lots of lines, so if you want to travel a little further it's only a five minute walk away.
There's a bakery that's a 10 second walk on the left of the building which has great pain a chocolat for breakfast, and the area has lots of lovely cafes and restaurants.
A few minor points to note though, while we were staying (July 2016), there was quite loud construction work from 9am in the morning, until the afternoon. The building is under renovation, so it is a little building-site-esq, although this wasn't a problem for us as the flat was so lovely. There's also no AC, and it can get very hot through out the day and night - maybe a fan in the flat would be a nice additional touch