I mean it's UNO.
It's about the worst implementation of a card game I've seen. There is sometimes a 10 second delay between turns online. Swapping hands with another player requires you to wait until your turn has expired until it actually accepts your inputs, and even then sometimes it just gives you someone else's hand completely. There is no text or voice chat so you can't talk shit. The "classic" rules are dreadful and can lead to games that run for well over 1 hour. Recently had a 97 minute game where every player quit, had their slots re-filled with new players and then they all quit before I finally beat the bots.
It's slow, it's barely functional but it's UNO you can play online I mean there isn't much more to say. If you want to play UNO this is the version to buy, but know it's ugly, slow and borderline non-functional. I want to give it a negative review for everything it does so so so so so poorly but it's just functional enough that I recommend it, if people know about the issues.