Pros - really good location in the heart of Montmartre.
Good facilities - towels, comfortable bed, kettle, coffee, fridge, microwave, hob, full length mirror
Cons - 3 flights of stairs (wasn’t a problem for us, but could be for others.) although, Monmartre is a very hilly district, so if you have mobility issues, probably not the place for you.
The main con is the size of the bathroom. Nearly have to sit sideways on the toilet and shower is fine in terms of water pressure and temperature but it’s absolutely tiny and you have to get dry/ changed in the bedroom as bathroom too small to swing a cat.
Summary - a good base to explore Paris, but not the one for luxury or if you wish to stay more than a few nights (in my opinion!).