Yes, but I don't hate the hydraulics, I just like cables better, so I'm not going to go to the hassle and expense of changing what's already on my bike. My next bike, though, won't have the hydraulics. Just the discs.
I only mention because I've got a pretty heavy cargo bike (rad power bikes expand) that comes with cable disc brakes that's i've found to be a little under-spec'd and went looking for options. Fully hydraulic seems like a bit of a pain (bleeding etc) and found some 'hybrid hydraulics'. In different forums I found some people that were pretty positive on them so I took a gamble and ordered but have yet to install them, they just showed up last week.