I really enjoyed my stay (even though I had to leave earlier than it was planned due to current situation). The flat is 2 mins from Pyrenees metro station - it was closed due to some reconstructions . So each day I went to Belleville metro station - on my way there were some really nice Chinese restaurants and cafes (my favourite one is Gangnam - strongly recommend for some fancy dinner) and there was an amazing view on Eiffel Tower.
5 mins walk from flat there are two parks - Parc de Belleville ( it's small - but close to it there is a nice cafe Floreal Belleville - perfect spot for brunch also they have some vintage market) and Buttes Chaumont (a big park with incredible view). But those places are good for jogging.
Talking about the flat - it was nice - on the second floor. The door was easy to handle. In the flat there was everything that you need - a space is perfect for one or two persons. I was solo it was perfect :) I was really impressed how everything was thought from all details. On TV there were many channels. I did try a coffee machine - but there is one.
So the flat was perfect. Neighbours were nice. I was staying for a month, so I used laundromat which was nearby. It took around 50 mins to do the laundry (faster than I expected).
So definitely I would recommend this flat.