This is a delightful studio in a quiet (despite being in the heart of Paris) passage with locked gates at each end overnight. At ground level, there are great little businesses, including a coffee roaster and an art gallery
Ther apartment itself is comfortably sized for a studio, though the shower/bathroom is small and there are no real facilities for a couple to eat a meal very comfortably.
But, with lots of restaurants around, this won't be a problem for many people It is also right next to Bastille Metro and very easy to get to from almost everywhere.
Heartily recommended