I like that it's an easy to use screenshot app, with no annoying ads or banners to distract me from my work. You can also easily share screenshots directly with a link to your clipboard. Sometimes it freezes when I'm trying to take a screenshot of my browser window. It happens more frequently if my internet connection slows down for some reason. Use it! The ease of sharing screenshots makes it very useful.
You can even annotate them with text. This way you don't have to worry about rememberingβ¦