Max and Billie's place was just what we wanted for our short stay in London. As many have mentioned, it was very close to the Notting Hall Gate underground station (seriously like a 3 min walk) which made getting around very easy. Checking in with Klevio was also a breeze.
The room itself is small but comfortable and we slept really well each night we were there. I think we also got in better shape going up and down the 5 flights of stairs to get to it :)
Highly recommend if you need a convenient place to stay in Notting Hill.