Sorry I keep missing replies ;)
Yeah I went to the first one after the Ozora split. I really loved the festival, though the tribe was not so resonant to me at the time (I feel I wasn't quite ready).
Been hearing mixed things about SUN in recent years but since I am on an indefinite Ozora break after 7 years of going, might as well check out SUN again. Especially if you recommend it. Been curious to see how it has evolved since 2013