We stayed at Krystel's house for almost 80 days. Me, my wife, and 4 years old little daughter really loved this flat.
The flat is located in the center of Marais. You can enjoy every hip restaurant, museum, and shop easily. You can also use several metro lines to get to the main point of Paris easily.
The flat is impeccable itself. My favorite moment in Paris was looking out the window inside Krystel's house and drinking wine or coffee. The house is bigger and cozy than you think. I'd never felt uncomfortable in this flat.
Krystel will also help you by answering your questions quickly. Communication with her was smooth and there was no blockage.
If I have to visit Paris again, I want to stay Krystel's flat again. I want to thank Krystel and the flat for making unforgettable memories.