Well, Medium is good. But I like the way I find content on Quora than on Medium. Its more like I stumble upon a post through someone's good answers and comments. Feels more like a discovery.
Medium gives me a much narrow view of the author. Something only what the author wants me to see and nothing more.
Don't forget Medium is brought to us from the makers of Twitter, with such classics as "Here's an API; get the fuck off of my API."