Jo & Jake are the real deal, just like all their other reviews state. Lovely human beings, a super cool pad, fantastic location without being overwhelmed by the loud bustle of London, and just generally a fantastic find all around. Cafes, bars, restaurants, shops, the park, and a weekend market are all mere steps away. Transit access via the overground is literally around the corner and bus stops are a few minutes walk further in several directions, allowing you full access to everything London has to offer.
Definitely get to know your hosts wherever you stay, because I can't tell you how much these two (and their incredible friends!) elevated an already excellent first time experience in the UK. Just wow.