I grew up around this area - it really is a gem of a place. The interior is so cool, with sort of organised clutter everywhere. They have a little garden and they serve food. Its not the best in the world, but the whole experience there is great.
By far the best bagels in London, they are open 24 hours and being just down the road from my flat a bit too local. It is run by a man called Mr Sammy, who doesn't muck about with portion size. It is well worth a visit especially for their smoked salmon and cream cheese speciality.
Being an East London boy at heart I am partial to an occasional fix of café culture. Pellici's has been running since the start of the last century, to which me, my father and my father's fathers have all enjoyed its mix of tasty Italian/London grub and energetic atmosphere. If you're visiting, make sure you drop by, as it will provide a valuable, forever-depleting education into what East London is really all about.
I found out an amazing fact recently about this place which weirdly enough relates back to my interest of analogue TV distortions in my work. The building where the restaurant stands is where John Logie Baird gave the first public demonstration of Television. If that doesn’t want to make you go there, the band Pulp also wrote a song of the same name on their Different Class album. Apart from these two great facts their food is pretty darn good too!