Over 20 years ago I decided that London was not for mead that I did not recognise it as anything akin to my life (and I lived in Bradford at the time!). We had to go to the place in about 2010 to visit OH's ghastly daughter (champagne socialist with teeth and no manners, she did not mince her words about how much she dislikes me when talking to her 'Darling Dad'). Anyway, that apart, I was really surprised about how much I disliked the place. I never, ever want to go again.
Our French friends used to say 'Paris, c'est ne pas la France' and I could only respond that 'Londres, c'est ne pas l'Angleterre'. I persuaded many of them to give it a miss except for the big tourist bits. In other words I'm not qualified to respond to this post, except to say that those outside London regard it with horror and a place to avoid. It used to be an ambition to go there.