Product review (2 stars): It couldn't be any cheaper - not a compliment
For as cheap as this gadget sells for, it is made out of the cheapest elements you could imagine. It is low-tech and crapy. It would cost a third of the price if you decided to fabricate it yourself. The thermal aluminium tubbing is NOT long enough to come up to the top of the dryer. Hiding it somewhere is your only other choice. The plastic fasteners are below quality. If you have a dryer with a short outlet, you will not have fun trying to get the exhaust tubbing attached to it.
ABOUT PERFORMANCE: In days of high humidity, it doesn't fare well. In general it does an average job. I wouldn't even recommend this gizmo to people I dislike.