Everyone is super nice.
There's so many places to choose from.
They can actually be pretty cheap
London is notorious for being expensive, but the reality is it's only expensive if you make it. Avoid going to Heaven on a Saturday night if you're trying to save a few pounds, instead if you want a great night out without crying over your bank statement the next day, try G-A-Y late, which is free entry with a flyer and from Sunday-Thursday drinks are £1.70, which is kind of amazing for a club in central.