It's very easy to use, it can be used with all versions of erlware (from 6x), has many useful features like tracing errors or profiling code execution time in real-time mode as well! I don't have any dislikes about hex; everything works fine but i think that there are some bugs related only when you work directly from command line without using emacs/vim editor so maybe they will fix them soon because sometimes we need this feature more than others! But still its good software if your projectโฆ