We use lighting for gigs and events that we are hired in to do, so I bought two of these units based on their versatility and large number of features. I am really impressed by the units overall especially the ability to switch from a spot to a beam fixture by use of the zoom and focus controls. I also like the built in movement macros that saves a lot of step by step DMX programming. The units are of good build quality, but I suggest they are handled with appropriate care as I'm not sure the casing would take much of a drop to break them. On the downside, there is no on-off switch, the incremental change in DMX value for some features notably the colour wheel and macro movements are so narrow, its not always easy to find the right number to get the effect you desire. I guess the biggest downside is that the cooling fans are a bit noisy if you are considering them for theatre work. One final gripe is that the manual is not desperately clear in some areas and a novice to moving heads make take some time to figure out what is what. That said, I am very pleased with them especially for the price, and was blown away when I used the white beam outdoors and managed to illuminate the cloud base! I would recommend these units.