To be sure, no one streaming service is likely to give you as much good content as you'd like. They're hoping that one good show at a time will keep you subscribed. (They have much, much, much more content, and somebody is watching each of them, but each one appeals to only a smallish set of subscribers.)
The other upside is that they generally keep things around. So if you're willing to watch not-still-being-made shows, you can just binge the content and maybe even drop the service after that.
Anyway... I'm watching Severance, and I think it's pretty great. Probably not enough to convince you to subscribe to AppleTV, but it's one example of a show that gets only 9 episodes per season, so it has to get to its point fairly fast.