I sell both brands. But, most of our sales are in the Covermate 3's. In some applications, like with deck mounting situations, we have to use the Cover Valet. If you do go with the Valet, request the heavier shock. Valet makes a heavier shock for 90" or larger spas. Every one of our Piper Glens go out the door with a Covermate 3. It fits real well on the Piper. Screw the lifter frame into the cabinet, about 1" below the bottom of the acrylic shell, 3 1/2"-4" in from the edge of the shell. The lifter has almost become a standard feature these days, it really makes the job easy for you and your family and protects the spa cover too. Enjoy. Dave.