The trade-offs are that the language implementer has an easier time of it (once), then every programmer has to expend extra effort writing the code (a lot of th

The trade-offs are that the language implementer has an easier time of it (once), then every programmer has to expend extra effort writing the code (a lot of the time), the computer has to work harder running it (every time), and code browsing/refactoring/etc. tools are literally never, not even in theory, going to work 100% perfectly. Now, if you're writing a programming language, this probably seems pretty awesome...