I have to say that I am completely satisfied with the Shilala/HCM product.
Currently I have 22lbs , yes that's 44 8oz bags in service!
In the 1 1/2 years I've been using them I have had to adjust humidity (+) one time after about 12 months.
I took 22 bags and put them into a cooler with a container of distilled water and a sponge (no cigars).
Monitored the hygrometer for a couple days got them where I wanted them.
Removed the water and sponge to let them stabelize for a couple more days.
Confirmed the RH and then swapped them out for the other 22 bags.
- Repeat
Put them all back into service and have not had to adjust again in the last 6 months.
I have recommended these to others with only positive results.