Horrible quality
Like most of the reviews, half the pods don't work, and I have to buy a device every other month. I followed some other people's recommendations - such as buying the pods without a perforated top that have "FEELM INSIDE" on the pod. That was fine even though it was a 50/50 chance at the gas station to get them. When i broke open my previous devices to see what was wrong with them - there are two horribly soldered wires attached to the contacts where the pods fit. Horrible quality now, they use to be good.