Let me start by stating that while I prefer the metal screens for the EZ whip, my best friend absolutely loves these ceramic screens. The screens, of course, are high quality and the ceramic craftsmanship is impressive. Also, as long as you take care of the screens by regularly changing them out and keeping them clean, they'll last a long time. However, if you prefer your vaping product finely ground, you won't like these screens. Also, I don't know if my concern has any merit, but I do worry that these screens will get scratched up (don't use metal tools!) and overtime the chipping and scratching might be potentially unsafe...at least I know that's true with dishware (like if a ceramic plate is cracked, you shouldn't eat off it). Again, I don't know if I should be concerned, but obviously since I'm buying products off this site, I care about my health, so....