I stayed at Daniel's place for 4 nights and had a great time! Very centeral location which allowed me to get around Paris mainly by walk, metro station line 4 is about 200 m away, super convenient! The building is in the pedestrian street and the windows face the courtyard, very quiet and it allows to have a good night sleep.
Perhaps it's not suitable for people with disabilities as there is no elevator and you have to walk up the stairs which should be no problem for anyone who is relatively fit. Communication with Daniel was always prompt and he tried to accommodate my early arrival the best way possible. Great value in Paris!