There does look like there's a ton of content in Mario Maker 2. Unfortunately I've no interest in creating levels so I don't really know how I feel about it. Can you just play it and not build stuff?
I wasn't too fussed about making levels when I started but found this to be the most enjoyable part, much more than just playing levels.
Seeing the completion rate, where people failed or receiving stars for my course was really cool, looks like there are some good community tools this time round too.