Good alternative.
The controller is a good alternative for those who still play with the Dual Shock ps2 controller. It's super sensitive, and looks really nice. The controller shown here looks black, but it's clear (transparent). Although, it is indeed a great controller, it doesn't replicate the experience of playing in the arcade. If you don't want to spend much, get this. If not, I recommend getting any ASC.

Great controller!
The official controller for Pop'N Music from Konami is a great alternative to the official Arcade Style controller. It's easy to use and is incredibly sensitive. It's only drawback is it's pretty noisy like all Pop'N controllers.