There's been a lot of discussion about the quality of user-created levels presented in the 100 Mario Challenge, so I'll ask:
- What do you think makes a good Mario Maker level?
- What makes a bad level? What makes you skip a level?
Even if you aren't interested in making your own levels (yet), let the makers here know what you love/hate about the levels you've played.
I'll add my own thoughts in a separate reply, but I'll start with a couple good articles from BoingBoing's Offworld:
If you'd like to post codes for your own levels, please see the Super Mario Maker Showcase Thread.