Share 'Summer In The City'

Hi, I'm new to this site so I'm not quite sure how it all works yet.. But, this is the first place I thought to ask about this. I'm thinking about going but is it really worth going all the way down London for? What well known youtubers are going? (Nerimon, Charlieissocoollike, Danisnotonfire, AmazingPhil, Eddplant etc) What actually happens there? If you went last year, what was it like? Sorry…