I stayed with Maria for a month and it was a wonderful experience!
Maria has a beautiful home and it was a joy to live there for a month. The room itself is great: tall ceilings, good lighting, and a comfortable bed. The living room space that she generously leaves to her guests is equally nice. I used it daily for work and relaxing. It really adds to your living space and makes it feel like you have your own apartment. The bathroom is clean and has a great shower. Since I was staying long term, Maria was also generous with usage of her kitchen. It is well stocked with quality cookware and a great stove. I also had plenty of room to put my food. The kitchen alone makes Maria's place a great choice for longer stays since it really allows you to save money if you're traveling on a budget.
It is very close to the Stamford Brook station and even closer to some bus stops. It is near several markets and there are several nice restaurants on the nearby Chiswick High Road.
All in all, I would definitely recommend a stay with Maria for any length of time. She is a great host and a lovely person to chat with. I hope to stay there again during my next visit to London.