135 flying is more about people and personalities. While I cant speak to the cargo operations out there when you are in the on-demand charter world it truly is all about customer service, and sometimes it is indeed a high wire act, balancing duty regs, and safety with the customers needs, but it can also be a very rewarding career for the right personality type. I enjoy the fact that I have much more freedom in the 135 world. But with that comes much more opportunity to step on your own wang. Personally I enjoy the challanges of on demand. I cant see myself ever re-entering the 121 world, but then never say never
