I bought three of these to replace our 3 x 650W Quartet floor lights. To be honest I wasn't expecting too much and was pleasantly surprised when I first switched them on. The beam angle is phenomenal, lighting all the back wall and most of the fixtures in the rig above. Scrolling through the preset colours, I found them to be vibrant and mostly accurate, the only real problems being with the darker greens and blues which appear to be slightly underpowered - reds yellows cyan magenta and open white are all punchy and look good. The dimming curve on the pre-programmed colour chases is quite jerky almost staccato but when connected to a dmx desk it becomes smooth and even, right to that last 1% to off - I'm impressed! However - I do have one major gripe with these fixtures and that is the barn doors - trying to focus LED's is like herding cats at the best of times but these barn doors are screwed into the front of the fixture and will not rotate - This is a real downer for theatre work and I hope that they release a replacement barndoor that DOES rotate. The menu screen appears to be touchscreen - waiting to see how that holds up in a student environment. Anyway the pros outweighed the cons and I purchased another 16 fixtures to go up into the rig.. Lets hope the units are built to last for a few years.