Super easy to set up and get working with. I've never used EF6 , so I can't really comment there, but I've seen mention that entity framework core is missing features relative to ef6, so that's something to think about.

Dealing with not-builtin types like jsonp/hstore is a bit tricky in EF so far it feels like, but doable? Doesn't seem like you can get a real first class experience with that yet though.