For example, I'm using Debian, and I think we could learn a thing or two from Mint about how to make it "friendlier" for new users. I often see Mint recommended to new users, but rarely Debian, which has a goal to be "the universal operating system".
I also think we could learn website design from.. looks at notes ..everyone else.
It may be ready, I haven't tried their latest version. Most of the functionality was there, but it had some rough spots. I've been meaning to go back and try daily driving it again.