This studio is in a great location in Montmartre - 2min walk from the metro station and 7mins from Sacre-Coeur. There's a supermarket outside the back gate of the complex and a boulangerie on the corner of the street which we visited on some mornings for fresh pastries.
We arrived late evening, so were pleased to receive comprehensive instructions from Marc about the key collection and how to access the building. We also appreciated that essentials such as teabags and coffee pods were left for us with a note to help ourselves, which was great for the first night until we could get to the shops the next day.
The studio itself is very small - although it states 3 persons, I'd only recommend for two adults and a child (there is a double sofa bed, and a single inflatable mattress which takes up all available floorspace).
The bathroom was clean with towels, toilet roll and toiletries provided and there was a washing machine / washing line in there too which may have been useful if we'd been staying longer. It was a little cramped when we stayed because there was also a big box with a new toilet in the way, but we had just enough room. (I'm sure that will be to replace the toilet, which sounds from the folder of information as though has been causing problems, although we didn't have any trouble with it when we stayed).
The apartment complex seems very quiet and secure. The apartment was 6th floor but there was lift access as well as stairs and there is also a swimming pool for use by residents. This was open 10am-1945pm daily and was not heated, but we did use on a couple of occasions when the weather was warm enough. There was also patio space and a lot of residents seem to use for sunbathing.
All in all a great location and very convenient for our needs. Would stay again in the future.