The Aeropress doesn't really require any upgrades. The stock paper filters are inexpensive, work well, and a stack of them lasts a long, long time. But I was excited anyway to check out this reusable stainless steel filter. The filter set comes with two filters: a simple stainless steel disk, and a wire mesh filter for a cleaner cup with less sediment. What I noticed was that it produced a clean cup, without too much sediment that can distract from the cup flavors and add bitterness in the aftertaste.