It's still working somewhat, but it is pretty confused.
I am able to sign in and get taken straight to the page where you fill in your dates, resort, room type from one link.
On another link, nowhere is the book button. After I search through it will allow book online to show in one of the menus. It's not always there.
This must be extremely frustrating for people trying to book at their 11/7 window. I'm just surfing for a missing night in June, that I already have backed up. Hope they get it fixed soon!