If you are a runner staying in Paris Parc Butte Chaumont is IMO the best place to run in a city that's not the best for runners. Canal St. Martin is close as well which is nice to run along as well. And many folks feel this park is the best one in Paris. I won't argue. And Belleville is a real Paris neighborhood with few tourists and everything you need to enjoy true day-to-day Paris. The Metro is a 2-minute walk from the front door.
This apartment is at the back of a large interior courtyard, way off the street. It's as quiet as you could want. It is well-equipped, though not fancy, and has a private patio right outside its windows. It has a large bed in the master and a good quality sofabed in the living room.
The hosts are super sweet and accommodating. I will absolutely stay there next time I'm in Paris if it's available.