I stayed in this flat for a month and I really enjoyed my stay. Sandra was very clear in all her instructions and everything felt easy to use and find. The neighbourhood is a wonder, everything you want is close by and it's beautiful.
The flat is easy to keep clean and changes very easily to accommodate guests for dinner or just to hang out. It's small but versatile and perfect for someone living alone. My only problem living there was the Internet. It's very basic, perfect for emails and quick checks, so if you're going to visit Paris, you won't need more. However, I was there for my studies and I really needed a little more than that.
Other than that, I think this flat is great and Sandra is a wonderful host.