The apartment from Diu is very nice and I loved to stay there. In my opinion the flat is even prettier than on the pictures. The flat is close to gar de l'est. I arrived at this train station and could walk to the flat which was nice. The flat is at a very nice location, in the flat it is quiet and you don't hear noises from the street but you can go outside and there are many bars and cafes. So when you want to go out in the evening to drink something its perfect. Furthermore Montmartre isn't far away, I took a walk there once. There is a metro station close to the flat from where you can go to the Louvre etc. in a few minutes.
The flat was clean and neat. They were very friendly, I would highly recomment to stay at this apartment if you want to visit Paris. I could use the kitchen.