Stephanie and I stayed with Roland and David for 2 weeks while we were in London. It was a great experience overall - they were very welcoming and the house had pretty much everything you would require for a comfortable stay. Pretty conveniently located in Zone 2 - the 188 goes right by the house and into the city centre, though for a quicker way in, we'd walk to Surrey Quays overground (about 10 minutes quick walk away). Kitchen and ensuite room were fully equipped as well! (There are only two power sockets in the room though, so it was a battle of technological priorities!). Thanks Roland & David for a great stay! (: