No, it's not. Majority of the people that I play with, which I urged to try hosting were unable to host. I remember in 0.6.1 that we were able to host Vanilla, and make it run really well, but had trouble with AGOT, and only 2 individuals out of 20 were able to host. Now on 0.6.2, Vanilla seems to be doing worse than before, and AGOT is doing as bad as on 0.6.1.