Boveda??

How are these to use?? All I have read on them is the cost. I don't mind paying for them if they are that easy to use. I purchaed a Xikar humidor last week and used there crystal system it came with but only used water (as instructed by the shop) not there solution. So the humidity went to 89%. Took out the crystals and left humi open and its back down to about 70%. Going to get Boveda packs tonight I think. Thanks