Sutra is the closest club to Irvine. Hence, all the comments talking about the impeccable amount of Asians. It's not a bad club- just smaller and they charge a cover if you're not on the list. They have some pretty good DJs playing from time to time- I would recommend signing up for text updates.
Went here to see Lil John however he never showed up on stage. Drinks were extremely expensive even for anything in OC. DJ was not transitioning between songs well at all. I suppose no cover is nice for a nightclub like this but unless you are going to spend hundreds on bottle service then it does not seem like the place to go for a night out.