I give this electric mattress pad an excellent rating for many reasons. It warms up my bed evenly so that when I get in, I don't have to get warm on my own. The pad gives all over heat with no hot spots. I love the dual control. The wires are so small & so evenly distributed, you never even notice them. I don't know why I haven't bought one of these a long time ago - just love it & it's worth every penny!