The product seems well-made and functions well. We have a smaller, lower-roofed attic space, and small vents, so it is a good size and capacity for that. One small issue is that the (small) instruction book, and the device interface, are a little confusing, or could use more detailed or clearer explanations. For instance. there is no set button or save or anyway to let you know that your settings are engaged.
Rating:
[5 of 5 Stars!]