For those who are saying that login issues are completely gone, you couldn't be more wrong.

The JP data center servers, where many of us went when the NA servers were unplayable, are still having issues during peak hours due to a much larger player population. As soon as they open up world transfers again, it will balance this load and bring back issues to ALL servers.

So yeah, logging in is still an issue globally in the game, and it's coming back to a server near you when they allow world transfers.