I've actually worked with the lighting system on 2 projects. (prototype though)
I haven't worked with the huge Boom arm which holds the light on one side and the reflectors on the other (I think it's an old sound boom converted to hold the light)
The system was developed by Chrisitan Berger, Michael Haneke's D.o.P. along with the Bartenbach lighting laboratory. As you all pointed out quite well there's good and bad sides, good things first:
- The reflectors come in 3 different sizes, if I remember right, and they are unlike any shiny surfaces from a hardware store developed and you definitely can tell the difference in terms of quality of the light. Especially the orange one's which have some sort of honeycomb structure are very flattering.
- obviously these plates are not heavy at all so setting up "lights" is not an huge effort.
Disadvantages:
-The according light is a 1200w parallel beam . I remember shooting on some DVCPROHD Camera rated @ 320; in terms of output the fixture is, although it is parallel beam, still a 1,2k HMI and we found ourselves often in the situation of adding more reflectors and more lights in order to get the desired F Stop. Again I have to point out that we didn't have the boom which probably gives you the ideal reflector - lamphead distance to get the maximum out of it.
- There is for sure an economic fact that rental companies are very much aware of. If you purchase one of these kits and say they are not treated right (all the surfaces are very delicate!) and returned with some scratches, you will have to replace them; and quite frankly I think these things are too expensive to be treated as expendables.
- Furthermore I remember the magnet mounting system for standard stands giving us quite a hard time but I'm sure they improved it over the past years.
I wouldn't say that the system is bad - in my opinion the reflectors are gorgeous and I would love to have one set on standby on every shoot in the lighting truck. The only thing that didn't really convince me was the lamp. In general.
Anyway.. My 2 cents.
cheers
Andy