15 minutes from Euston Station on the northern line followed by a 10 minute walk.
Just far enough from city center to feel you have escaped the buzz but close enough that its not an inconvenience.
The area of highgate has lots of little cafes, delis, beer shops, tesco and enough pubs and restaurants that if you want to stay local its not an issue.
The flat itself is located up some narrow stairs so beware if accessibility is an issue but once inside there is plenty of space.
The roof terrace is a highlight and if weather permits I reccomend getting some pastries from nearby and sitting with a coffee before heading out.