Unfortunately it was my first not so nice experience through Airbnb... The one room apartment is in a very nice area - North Kensigton - easy to reach the underground station, a short distance to Portobello Road. And it has a nice terrace, but reachable just for young people.
The mattress was totally broken, so the first three nights one of the two of us had to sleep on the floor. We were complaining but it took three nights till we got a new one. Then the heating didn't work, so it was very hot - as we told that to the company (which works for the landlord) they told us just to stop the heating and open the window - it was ok. But if it would have been really rainy London weather it would have been to decide: very hot or really cold. Then the flush of the special toilet did not work dependable - the water was sometimes just running through. We were able to fix it - but still it takes some time if you have to go to the toilet in the night;)
We again informed the company on the first day - they are always answering soon but they want to see pics/videos, were chatting a lot. But if you are on holidays it gets really stressful; they didn't seem to be interested in sending someone...
There is a nice kitchen - but it was sticky everywhere with a lot of dust and with dirty cups and pans and also some hair in the bathroom.... We were sending some pics - an they send some people for cleaning five days later - the dust was still there, the kitchen utensils
still not really clean...
In the end we tried to make the best of it....