Stayed with a party of four in Blaise's place in March/April 2016.
First of all, the location was brilliant!
Within 5 minute walk from Chatelet-Les Halles (both Metro and RER), Sentier and Etienne Marcel metro stations.
We found it very easy walking around and getting to all the tourist attractions was incredibly easy.

The flat is quite big and definitely good value for money. Being on the fifth floor was no big deal besides the first time when we arrived with the suitcases.

Checking in and getting access to the building was incredibly easy, as well as checking out.

Thanks Blaise!