I used to go "back in the day" when Moss was there. As written, they were really great - fit girls, well organised and proper gangbangs. I have not been in quite some time - since they re-branded as Phoenix - as I understand from reviews that the "magic" has gone. It is now, I understand much less (if at all) full blown GB with the girls, but rather a series of one on ones. Since one can get that elsewhere the key to a great party is a true GB. I did attend one (organised by ...cannot rember, but it I did a review) where there were six guys, three girls and a real GB. I also attended one by Submissive Lauren (now re-branded hereself as something else) which wasfantastic. Just her, but about 7 guys and DP, all holes filed, CIM etc. There was a real appetite for a repeat - but it never happened.
It seems that girls oganise GBs, they go great, but then they are not repeated. And I do not understand why? If I recall, the last one was £200 for 2 hours (or maybe 3) but 7 guys equals £1,400 which is not bad for 2/3 hours work.