[chii]

you shouldn't really be running `optional.isPresent()`, but rather, use a map operation, or a flatMap operation, all the way until you need to interface an outside api (in which case, you use a `getOrElse(defaultValue)`).

You're right about code that branches based on `isPresent()` is semantically the same as null checks - and if you only did that and didn't use any functional paradigm like mapping on the types, you don't really get any real benefit!