I've been there for 6 times and I collected over 6 millions of x4 and it is pretty cool to just kami uberprogedits there with group. After the patch of the logout bug, I still have a hangar there, with other 4-5 friends. You need to go there with diamond and ring, double cool down boosters and double shield boosters. It is easy to survive there with some aegises so good luck to everyone. And the hangar, there you go: