It is easy to use, it generates well-structured code that's more readable than other tools I've used in similar situations - even though those are much older (like 10 years). The tool has some useful features like syntax highlighting or autoformatting of generated classes/methods etc., which helps me get started quickly with new APIs right away without having to dig through its manual first! There isn't any particular downside as far as we can see so far; however there might be something hidden