This tool has been very helpful in creating custom groups, with different privileges/permissions attached per group member! Very easy to use & understand - I love how it integrates into Gmail so well as other google apps such as docs or calendar etc. If there was something that could be improved about this program would be more streamlined options when selecting certain files types / file sizes - but overall great product, worth using!! Great if you're looking to streamline workflows or better track who can see what information within emails.- Easy integration with all gmail applications. The ease of use! It's so easy to set up, it does what it says on the tin. I haven't found anything I dislike. I will say that it isn't very intuitive. There are so many features, it's easy to get lost. I've tried other products and this one has been the easiest to use! We've been using it for a while and it hasn't let us down. I've used it to give specific people access to certain emails and files. It's very easy to use and we've not had any issues with it.