I had a lovely stay. The location is terrific and considering the price, this is a bargain for Paris. I had a problem with the door and OpenFlats was very responsive - someone came to fix it in about half an hour. The place is very clean and quiet, the kitchen area is big and the coffee machine was great to have.
The only minus is the bad wifi - I had some work to do including taking a zoom call and the connection was very unstable. Otherwise, I cannot recommend the place more and I think I will book it again on my next stay in Paris!