I went a few years back and it was OK. tbh, the music part of the festival is all I’m really there for and put up with the long traffic queues, the mud, noisy campsites, drunk/drugged idiots, rubbish toilets (although glasto is better than most) and other hassles for it.
On the plus side, it does have some great variety of music acts, and if you’re going to spend £200 and get bored of music acts, then there’s plenty of other distractions. The food is generally much better too, more independents and fewer generic burger/chinese/hogroast ones.
Have been to dozens of others, but it’s the only festival we’ve experienced any crime at (tent robbed as we slept) which probably tarnishes my view a bit.