I love how easy it is for me as an office manager of my organization, which has over 2 million members worldwide! It's very simple but effective in keeping track with all our projects/initiatives that we have going at any given time within this one platform - from project management right down through content creation (blog posts) or event planning etc., everything can be done here without having multiple platforms open up simultaneously!! Also great customer service team who are always willing & able help when needed :) Nothing really so far other than being impressed by their ease-of use once set out properly.
We're using them primarily just because they make things easier between us internally too i guess?