We were in Paris for a conference and stayed an extra week. This location is fantastic - you are 2 minutes from Rome metro but, more importantly, it is a 30 min walk to river Seine, 30 min to Arc de Triomphe, and 10 min to Montmartre. A grocery store and a bakery are at the end of the street (5 min walk), and a charming little restaurant is literally next door.
The place is small, but it has all the essentials, and the bed is king size and really comfortable. We really enjoyed the stay!