Excellent location, comfortable bed and very quiet at night. Le Marais is a delightful area and metro/RER connection is great. A very good base for a short stay .
Musée Picasso is superb.
Staircase will be difficult for those with mobility issues and low beams are a problem for people of average height or above. I am 1m83 and found it difficult to relax, banging my head several times.