I can only agree to the previous reviews.
Ollie is a great host, super responsive, very considerate and well-organised. He really wants you to have a to good time at his place.
I am quite sure, he must have a good sense of British humour (wait for the fridge to talk to you) :)
The place is tastefully furnished with an eye for details. It’s perfectly clean and tidy. Check-in works easy with a key safe box.
The flat is located in a quiet street with everything you need just around the corner (small shops, restaurants, pubs).
The buses 4 and 19 will take you downtown or Picadilly line will take you there from Arsenal station (also going to Heathrow directly).
If you like to go for a run/walk, Highbury Fields is a 5-10 minute walk away.
I would definitely recommend Ollie’s place.