I love and have always loved my Waldorf Q Phoenix Edition. It stills feels and sounds a modern instrument. The limited 2 line LCD display always dates such technology though. This display upgrade replaces the pale bluish white on blue LCD display with a bright OLED display. I went for the yellow display which is a great contrast to the maroon front panel of the Phoenix Edition. Although you can't break out of the limits of a two line display this update gives a very nice improvement to the front panel.
Installation was easy too. The cable came with an extender so that the length was just right from the display to the circuit board. It also came with replacement spacers so that the display is in the correct place.