The flat was great! it was clean, cute, with little patio, nice bathroom, bed was comfortable, no noise at night from neigbourhood.
Flat was really easy to access from airports and public transports. Notting Hill is a great area.
Helena was a very nice host, who really wants her "tenants" to have a nice stay and is doing everything she can for that to happen.
My mum and I had a great stay! We recommend Helena and her basement flat!