OK, first of all the bad- the entire unit is cheap plastic, so extra care has to be taken. The unit was delivered in a box, so not just a plastic bag as another user claimed. The light output is incredibly high and even, I was really not expecting it to be half as good for the price. Color temperatures are spot on and I have ordered the biggest Sony L type battery to use with the unit. The filters come in a nice little passport-like folder :) I am using it with my Lumix GH-2 and it is definitely not too heavy for the camera (and the GH2 is a small one). Even with the difussor, the light is not that soft on the max setting, but this is due to the huge output. There is a light output level regulator/switch, as well as the battery level meter. All in all definitely would recommend to anyone who is into video (works great for photos as well).