I didn't buy this for its intended purpose. I'm using it as a dish draining rack. I screwed it onto a counter adjacent to my kitchen sink ( the dimensions are perfect ). When it is extended the rack is directly over the sink for the dishes to drain into the sink.
It was easy to install. I just got it today so I'm only giving it a provisional 3 stars. After using it for awhile I'll probably come back and revise my rating to 4 or 5 stars. I certainly won't lower it.