+1 Type safe, autocomplete let me write code quickly. -1 Has lots of boilerplate that requires an IDE to stay sane +1 Pretty fast, good JVM -1 encouragement

+1 Type safe, autocomplete let me write code quickly. -1 Has lots of boilerplate that requires an IDE to stay sane +1 Pretty fast, good JVM -1 encouragement from the Java community to write slow code +1 Easy-to-understand code through interfaces -1 Unnecessary interfaces and failing unit tests (for stupid reasons) cancels out productivity increases