Bests & Worsts Reviews from Amazon

Nicely made dripper, I'm happy with the upgrade from an old plastic one I had kicking around. Regarding size options, the 01 is the minimum size for a single 10-12oz cup of coffee, in my opinion. At 20g of coffee, the dripper is crowded and I'm barely able to add as much water as I want to. Coffee shops all use the 02, so unless you're seriously constrained for space, I'd go with the 02 so you've got more room in the dripper to work with in making larger or multiple-cup pour overs. If you exclusively use this for making a single cup of coffee, the 01 will probably work.