>>149954869I know of a dozen people who bought one and a bunch of different flavor packs at the same time, tried each flavor once, threw out most of them, bought a single refill of the flavor they liked most, then got lax on cleaning it after each batch (because they were doing the same flavor every time anyway). It always ends in either giving up on buying refills entirely, or breaking the thing because week-old residue didn't get cleaned out.