Staying with Oliver was really nice - the room is set apart a bit from the rest of the aparment and has its own bathromm with toilet and shower, which is very convient and makes it feel more private, which was one of the reasons I booked it. Oliver was very flexible when it came to the check-in, provided me with good tips for public transport and where to eat and what to see and we had interesting conversations! A small breakfast is included, such as toast with marmelade, cornflakes, tea and fruit - which makes for a quick start into the day, without having to look for a spot to eat first.
The location is really good - you're in Zone 2, so pretty much next to central London; I think that makes for a good compromise between the money you spend and the time you spend on travelling to the places you want to see. The apartment has two bus stops right in front of the house, so it's really easy to get home from several locations or to go to/come from the London Heathrow airport to here. It also has two district line stations within a 10-minute walk, which makes it easy to reach basically anywhere in a short amount of time. It took me about 50-60 minutes to get to the Tower of London, the Tate, St. Paul's Cathral and anything in this area. To get to the British Museum, it was only about 40 minutes and within only 30 minutes you can get to the Natural History Museum - so all that was very convenient and I was very happy with the location!
At the moment there is some construction work going on in the house next-door, which you can hear sadly quite well in the room, so it was not very quiet in the mornings, starting from 7:30. Even wearing ear-plugs did not help, as it shut out at least doorbell and conversations I would otherwise hear, but not the construction noise itself.
This is a temporary thing, but if you are a light sleeper and like to sleep in, maybe just ask before booking, to be on the safe side and not be unpleasently surprised. Aside of this, I would full-heartedly recommend staying here - great location, and a very nice host! =)