I love em! I think if you had a club or a mobile DJ business they whould rock the house. Im not sure how well a color changer whould fit into a live application but if you are looking for color changers along with the Martinline, I whould look at the VEI V-250 NovaScan Color Changer. If you are looking to use this in more of a live or theatrical production the HES ColorCommand. Anyone who has used this fixture for a theatrical show will agree with me that it is an amazing thing to have around.