This handy tool makes quick work of pitting and slicing avocados. Do you need it? No. Is it nice to have? Sure, especially when working in batches. The pitting tool is my favorite part, since it reduces the risk of injuring yourself when using a chef's knife to remove the pit. I was a little disappointed in the slicing feature, which I found hard to use (plus, I prefer slicing my avocados thinner).