My wife and I stayed here for a month in the height of summer (with the hottest Parisian temperature in record). Despite the heat, we found the place very comfortable and well appointed. The flat itself has been very well designed - it has all the facilities you would need, and care has been taken in the details to make maximum use of the space. There are also some quirky touches, which make it different from some of the bland places that we have stayed in. As other reviewers have mentioned, it is surprisingly quiet for being in the middle of Paris. This is because it is located deep in a private alley, which is closed off from the street. We also found both the owner and the concierge of the building very helpful. The other thing worth mentioning is that it is about 5 minutes walk from the Strasbourg St. Denis metro stop, which serves three lines. This is really helpful if you intend using the Parisian public transport.