I would rate my stay at Elliot and Holly's a 3.5/5. It was an extremely comfortable space: it was tidy and clean, modern, and had everything I needed. Hostmaker was great with check-in, communication and providing local tips.
The things I didn't like about the space was out of Elliot and Holly's control.
We wanted to sleep with the windows open because the weather was nice, but it is just too loud with the windows open (there might have been a hospital nearby as there were sirens almost every hour throughout the night). I'm sure Elliot and Holly are aware of the noise as they equipped the flat with thick-paned windows, which did a great job at blocking out sound and the heat/cold. But on the flip side, if you close the windows, it might get too warm. There were also floor fans in the flat if you do decide to close the windows, but the fans can only do so much. I would expect the temperature issues would be worse in the summer, it was still pleasant when I was there.
The area, although fine during the day, was a little dodgy at night. Furthermore, the entrance to the building is tucked away in an alley, and I did feel a bit worried whenever I returned late at night by myself. However, it's great that the Aldgate East tube station is right next to the building, which is easy to take to Paddington for the Heathrow Express and to get around London in general.
Overall, there were pros and cons to this space. In terms of value for money, it was good. So it just really depends what you'd prefer to sacrifice at this price point.