Great little studio, ideal for getting your head down after a long day.
Yes it is up 4 flights of stairs but believe you me, I need the exercise.
You can use the tube (Notting Hill under 5 mins - Central/Circle/District) but when it is sunny it is a lovely walk through Kensington Gardens and Hyde Park down to Oxford St or even Knightsbridge.
Would recommend this studio and I look forward to staying here again.