I totally recommend staying at Marta's. Even if we couldn't meet face to face, she was super helpful with the indications and any other questions we had during our stay. The apartment has all it promised and more: lots of light, dishwasher, even a big TV with Chromecast.
The place is very well communicated through Overground and lots of buses from central London, many of them with 24 hour service.
We specially enjoyed having a couple of bikes available, you could go to London Fields (check out Broadway Market St for dinner or a drink) or Victoria Park in 10 min.
Café Route opposite has very friendly staff and amazing food all day long, visit it once and you'll become an instant regular.