Hi, I guess two killer features that we think make all the difference are:

- the central place that modularity plays in the whole architecture, and

- the fact that the JavaScript VM is a first-class citizen.

While I don't doubt that you'll find things you miss from Scala (implicits, if you insist - though IMO they're generally harmful, pattern matching, maybe, or higher-order generics, perhaps), I'm sure you'll find things in Ceylon that you'll love. For example, I _know_ you're going to love the things you can do with union/intersection types. I think you'll really like how we treat null, and our approach to flow-dependent typing in general. You might also dig how the language treats tuple and function types, and how you can just naturally abstract over the arity of a function/tuple type. And you might find runtime metaprogramming with reified generics and the typesafe metamodel a whole lot of fun.

I hope that's at least half an answer...