GGG of old was great, you had amateur guys fucking the girls and it seemed more like a free for all. Nowadays when you watch GGG you'll see a select group of male pornstars fucking the girls and then 'amateur' guys are stood around and seem to be there merely there to dump a load on a girls face. That's not very appealing to me considering it'll cost you 100 plus euro for the test.
There's other companies in Germany who'll do gangbang bukkakes where you'll be far more involved. I'd personally rather go to them.