For an RGB solution, they are great. The color distribution is excellent - although some don't care for the pearl color when they're not lit up. Their shape matches that of a standard concave button, but the material is a harder plastic so it's not the same as older buttons. They are expensive. Some have complained that the button tends to vibrate when pressed. Randy has advised that this can be corrected by manually stretching the spring a bit to remove any play. My only complaint is this - I purchased a bunch of ICE buttons, then some more at a later date, so some of the colors don't match. Also, one of the LEDs went bad and again, there's no easy way to replace with a matching color. But this is really a RGB LED issue and not specific to the ICE buttons.