Nice apartment a few minutes from Portobello road.
It was cosy and nice thanks to the very effective heating system.
However there were two things we didn't like:
The bed is described as a queen bed, however it's a double (we measured it) so that wasn't such a good surprise.
The windows are very thin and badly isolated so the cold air comes in (especially in the bedroom). Luckily the heaters are very powerful so we could sleep anyway.
Overall a good experience in a very nice part of London.