I used one for over a 1000 hrs on my 17 ton Terex. About 12 K as I recall. Super handy at times, but it was finicky, and I had to send it to Germany a couple times to get worked on. Can't remember the brand name.... It allowed to get a leg up on my competition, especially in setting trusses. Back then I also carried my Goldwing bike up on the bed, rigged. And I would get on the bike and fly myself off to the ground, unrig, and ride off and go eat lunch. After lunch, I ride back under the hook, snap in, and fly myself and the bike back onto the bed. One time, I flew myself up to the ridge of a two story building to talk to the framer, this was before OSHA, or maybe they were not around that day.
Somewhat to my surprise, I didn't miss it much when I got my first sit down boom truck, even more to my surprise, neither did my customers. My current rig, a National 30110A, has a remote option, but only if I abandon the free swing turret, can't have both, and I like free swing better I guess, mostly I like sitting on my butt in the almost sound proof cab, with AC or heat, and SAT radio, then running around with the remote on my waist.