Cambridge Rock Festival

[Unbusy]

Thinking about going for the first time to this festival as there are plenty of groups I would enjoy seeing.
Plenty of real ale and the festival used to be called Rockinbeerfest. So it sounds like a right Royal piss up but I’m a lightweight nowadays. I don't think I can drink for 4 days solid. Will give it my best shot (no pun etc.).
Anyone here been? Any feedback on the vibe, friendliness etc?