Some 150 years ago this pub / bar / place / eatery / space / whatever it calls itself now was known as the Miserable Man. The perfect pub for a chap like me!
Now after a couple of refits The Belsize Tavern became The Belsize, each one becoming more and more gastro and gliztly / nasty and grisly and dull. Now it's the XO Bar and offers "Pan-Asian menu including dim sum and sushi in a modern space with dark wood and scarlet details" That's progress for you.
I must confess I haven't actually been in yet... but I will. I'm in no hurry mind you!