Ok, take it from one Al to another.
I have had a Mini for about two years and love it. Been perfect since the day it arrived. Check out my Gallery for pics.
I orignally had beads and installed a fan hooked up to a timer to move the air. The beads worked great, but I did find i was wetting them frequently. Especailly in the winter with the heat on in the house in a dreer enviroment. I know I could have ordered more beads, but didnt.
Last monthy I swtiched to the Hydra unti and love it. I took Mark Twain's advice (search for his Hydra/SAP thread) and swapped out the foam for SAPs. I have not added water since I changed it over and it is almost a month.
The Mini holds steady at 70% (+/- 1%) with out fail. I only have 1-2% difference in the top and bottom as I have the Hydra sitting on the shelf of the Mini (versus) the bottom.
I did purchase the Hydra with the mini fans, however I think they are too small to move the air. I re-wired my larger fan to connect to the ribbon from the Hydra and it goes off and on when the Hydra unitl comes on.
The Hydra can more than handle a Mini.
Feel free to PM me iwth any questions.
I had contamplated a Set and Forget, but the way this is running, I dont think I would change. I travel a lot for work and have no worries about this unit when I am gone.
Good Luck!.
Al