That's me with the Arri Alura for our two AF100's in rental inventory. The lens is certainly rather large and heavy, a bit pricey at $25K, but a set of low cost Cine primes costs a similar amount and the Alura offers good focal range and speed and at 11" long and 10 lbs, it's not that big and heavy.
It's great not having to change lenses all day long, a lot of clients like changing the focal length during interviews--harder to do with primes.
Proper rod and lens support is essential, but a Sachtler Video 18 or 20 fluid head handles camera, on-board monitor, lens, matte box, follow focus, Hot Rod Cameras AF100 Tuner Kit(w/PL-mount adapter) and Element Technica Dove Tail and Base Plate quite well.
Jeff Regan
Shooting Star Video
http://www.ssv.com