You can't ask for a better host than Liz or a better place to stay if you're thinking about staying in London. Her place is very conveniently located. It's perfect where you're close enough to the city but just far enough from the noise. You can reach the Marble Arch underground within a few mins walk. There are many food and coffee places within a short range.
Liz goes out of her way to make you feel comfortable. Her responses were timely and helpful . Room was everything I needed (traveled alone). It was clean, the bathroom was spacious, and it had a kitchen. You won't find a better place for the value.