We loved our stay in this apartment, easy walking distance to the Marais, the 11th arrondissement and Isle de Cite. Great bakery, coffee shop and restaurants on this quiet block.
The apartment is well appointed with plenty of closet space and a nice kitchen. Heat worked well on chilly evenings.
As advertised, it is a 6 floor walk up (7 floors by American standards), so be sure you're in good shape. (We were fine.)
Wifi was a bit wonky at first, but the management did a good job of getting it working again.
A matched set of drinking glasses and providing some toiletries in the bathroom would be nice, low-cost improvements that would make this place even better.