I had a few dealings next to the city airport. Always looked a bit scary planes taking off and landing there. Will try it next time in London.
Its great. I live next to the DLR too so it's super quick for me.
There's a pub on a boat called the Oiler in Royal Victoria Dock about 15 minutes away, great in summer as planes come into land over you. Owned by a guy from Seaham too!