How's online coop?
The co-op itself is great, seamless and painless tbh
Just open the social menu, search for a buddy's character name, click invite to party and you're done. You both have the option of instantly teleporting to one another at any time
The game did just release in early access on Friday and there are a fuckload of people playing so there have been some server disconnects but nothing crazy; any time that happened I was able to get back in within 5 mins tops