We do have Costco around here! I’ll take a look for those Lavazza beans - they sound like a great deal.
Never tried the metal Aero filters but I found some off brand ones on Amazon that do the job really well. Got like fkn 800 filters for $10 on Amazon so that’s WAY cheaper than the Chemex as it is. I worried about the metal filters resulting in oily coffee akin to a french press, did you experience that or are my fears unfounded?