Hey!
I've been using them for the past three years.
It works great for long term storage, keeps your buds nice and fresh so they don't crisp.
You want to get the 62% though, that's the one for cannabis.
I normally dry, cure normal burping style then after two weeks I start using the packs.
I suggest you to try them out yourself.
They have a little boveda experience or something where you do the same process in different jars one with and the other without using the same strain.
Hope this helped.
Good luck and happy growing!