Yeah I noticed this too, it's not just you. I emailed support... hopefully I was the only one. It's not like they need a world of people telling them, but at the same time if no one does, well... how am I supposed to know if anyone contacted them to let them know?
im not sure about custom games, im in a 1b1 now. i will try a custom (after i lose since i was on this forum lol)
If you go into your settings and change your server to EU or AUS, you will be able to host a game and play. I tried it, worked although I don't know if it was the server or not, but at the very beginning there were bits of lag. Afterwords game played fine. Seems like it's just the US server that's down.
EU servers are dead since hours as well. @jables this is bad, you should at least have somebody who gets pinged when this happens?