Pauline's place is beautifully well equipped, modern, and spotless, with comfortable bedding . You're about 4 minutes walks to Picadilly Circus and along the way you pass multiple theatres and restaurants. The side street she is on puts some space between you and the constant bustle of London. There are two theatres pretty much across the street.
I'll re-iterate something that has been pointed out in other reviews. It's a top-floor walk-up, on the 4th floor (in British/Canadian speak) or 5th floor (on American speak) and it's 85 steps up from ground level on a somewhat narrow staircase. Hauling your suitcases up can be a challenge, and even the climb without them is a little tiring at my age.