I stayed in Caroles place with my 12 year old son for 5 days and we really enjoyed it.
The room is bright and clean and comfortable and we felt at home from the very first minute.
Check in was quick and easy, even though she was not present at that time.
And the area is perfect as starting point with a 10 minute walk to Sacre Coeur and Montmartre and busses and metro in close walking distance.
Vélib bikes are a bit rare in this area, so if you need more then 2 at the same time you might need to walk a little further.
I can really recommend the stay if you don't mind sharing a place with someone else.
Thanks for letting us feel at home Carole :-) I hope we can come back another time!