Joachim’s place was the right choice. Place is located in a nice area, trendy, full of restaurants and bars and not touristy so you can enjoy a more local experience. Apartment has everything you need and Joachim is super friendly. No noise at night and bed is comfy.
You do have to take the Metro for most tourist attractions but there are plenty of stations close by. Also a supermarket and a great boulangerie just in front.
Check-in process is not the smoothest since you need to coordinate with Joachim to get the keys but other than that, I would really recommend.