Wow a really great kind of keyboard, here's my personal review below :

Pros :

• It provides a more premium typing experience and a versatile input dial
• You can easily control whenever you need it
• You can easily touch, tap and turn in some apps that you want its either in Windows or MacOS platform
• It does have some backlit keys that will help automatically adjust brightness
• It does provide a more increase key stability which can reduce noise and optimize responsiveness

Cons :

• A keyboard with price around $199.99 is too expensive. But still this kind of keyboard provides convenience to user.