Isabelle’s studio place was perfect for me and my boyfriend. It was also in a great neighborhood that was nice and quiet with local spots nearby. The subway was within a few blocks and traveling around the city was easy from here. It’s even a nice walk to the Eiffel Tower (about 20 min) that we did a couple times at night.
If you’re coming in the summer just be aware that a lot of locals go on vacation so a lot of places will be closed. As well as sleeping in the apartment, it tends to get hot at night. (And bring mosquito repellent!!!)
Overall I recommend Isabelle’s place, it’s convenient and away from the tourist chaos.