Silent Switches are the number one improvement you can make IMO. The Aluminum case is sturdy, but these switches were more noticeable as far as feel and sound. Even in the stock plastic case these switches feel great and are quiet.
Only reason I could see someone not enjoying them is the dampened feeling isn't as sharp when bottoming the keys out. I personally love the way these feel and it's a drastic reduction in sound.
Also it's not in the description, but it did come with a switch puller f...