I purchased my dual zone edgestar cooler probably 7 to 8 years ago.  
It is the absolute best cooler I've ever purchased!  It runs like a champ, the motor isn't very loud, and it's never given me a problem. I would buy another one in a heart beat. I recommend it to everyone I know.  It's exceeded all my expectations. If you're thinking about buying one, DON'T HESITATE! But this product,  you won't regret it.