I've stayed at many AirBnBs over the years, and Simon's place is one of the best I've found. The place is perfect for one or two people. I was there for five weeks. Excellent kitchen, nicely organized common space, loft bed, but the ceiling is not so low that it feels claustrophobic. Windows on both sides so you get morning sun and evening sun (when the sun shines in London, of course!).
The neighborhood is real London, not simply tourist London. Great places to eat. Neighborhood bars. Mix of old local stuff and more hipster vibes. Very easy access to central London, as it's steps from the Bethnal Green tube stop. Just south of Hackney, which is also a great place to explore, and north of Whitechapel, with its great Punjabi and Bangladeshi food. A short walk to Brick Lane and Spitalfields markets, as well as the famous Columbia Rd flower market every Sunday.
Simon was always prompt and helpful in responding to queries.
I was in London to do some research at the University of London, in Bloomsbury. This was the perfect place to live. It was easy to get writing done at home, when I didn't want to go to the office. It was a perfect base for exploring London. I cannot recommend this place highly enough.