Sky is wonderful but after you've played through it and explored around a bit, the content cycle is pretty obnoxious and requires you to really play damn near every day hardcore to unlock all the stuff in their season pass before it's gone.
Fortunately 99.9% of it is purely cosmetic and the bits that aren't are just little toys, so you can easily just play it for the actual game content, which doesn't really go away.
I don't mind just playing around in it for a while to see what it's like, the company has certainly earned my interest in anything else they've created; I'm going to start with their older games first