Not super experienced, but enjoy occasional BDSM sessions.   Saw ad for "femdom play party at ivy manor" in los angeles march - seems interesting, less for play but more to meet/see all mistresses in action and see with whom i might want to schedule private time later.   for someone who has never done a group scene, what is vibe?  are their unattractive dudes hanging around the sides lurking?   flyer says 1/1 mistress to slave ratio which i find hard to believe.   Any feedback would be appreciated

https://www.eventbrite.com/e/eyes-wide-shut-mouth-wide-open-a-multi-mistress-femdom-play-party-thursday-march-10-2016-tickets-21784619383

I am not familiar with the place you mentioned, but know that the Sanctuary Studio in LAX has a regular play parties on Wednesday where you pay a fix fee and have the opportunity to play and see different dommes, subs and switches in action. It's a great way to find new people that you would like to have a full session in the future and their personal and space are great.  

I hope it helps.
Sofia/Queen Sofia