The location is great, it is in a side street off a busy road. It is easy to reach and in a central enough location that Paris attractions are easily walkable. There is a metro line nearby, and you can rent the electric city bikes on the place de clichy. I loved the Montmartre area, which really embodies French culture (local food stores, great restaurants, cafés with terraces and walkable streets).
The apartment looks exactly like the pictures, it is well designed and spacious enough for two people. The Kitchen is small but has everything you need (even a small dishwasher!). The bed is very comfortable. The view is not great, but the location of the apartment makes up for that (just walk 10 minutes and you will have the best view in the city from the steps in front of the Sacré-Coeur).