I think given the people who have commented we will have a lot of GoS experience. As a raid people worry about it because for a poor team the boss fight can be brutally hard, however with enough people who know it, its challenging but also a lot of fun. And on the way we get to do three great encounters (personally think encounter 2 is one of the best bungie have ever done, but that me!). So join up, you'll be fine !