I have installed this one and a Pegasus and found the latter a lot more solid on any number of accounts. The Kohler has a plastic seal around the inside of the door—tacky looking. I also needed to adjust the door to seal properly even though the cabinet itself was completely level. Also, a heads up—beware of the hole size you cut, which works fine, but you need to center it within the space as there is a lot of give in the space on either side if you screw the unit in too  tightly on one side. The screws are cheap so beware when using a power screw driver. They mushroom easily. I had none of these problems with the other product—I also love the vacuum on shutting it. No plastic . . .