I do my own meal prep and avocados are a MUST! Therefore this tool is vital to me.
Really easy to remove the pits(it's really hard and dangerous to do it with a knife) and the knife is sharp enough to cut through the avocado's skin. The ability to slice and separate the avocados is a huge time saver.
It's harder to clean than a knife though, but it's much safer to use. And you won't have to use a spoon to scoop out the flesh before slicing them.
Just beware of fakes in the market. It doesn't work as well