Highly recommend Matthieu’s loft for your stay in Paris! The location is great, in the 11th close to metro lines 2 and 11 (pro tip: line 2 is air conditioned), and the loft itself is spacious, clean, and has plenty of amenities like a washer/dryer, Smart TV, and dedicated workspace. Huge bonus for the summer is the water dispenser that always gives you ice cold water.
I had a few spots of bad luck during my trip, like a last minute cancellation of my flight home by Air France, and Matthieu was super accommodating. Saved the day for me several times. He gives you everything you need for your stay, including plenty of coffee cups for the machine, but is also responsive and helpful if you need to reach out to him during the stay. I also had the pleasure of meeting his housekeeper Gladys who is very kind!
If you want to do Paris like a local with the comfort level of a fancy hotel suite at the end of the day, this is the place.