From my limited experience in both King Air's and the 1900 they maybe easy to hand fly, but the task of hand flying 7-8 legs a day is brutal. The whole 250 to the marker is wonderful, but let's step back and think about this. Every thing happens a whole lot faster in this scenario and I mean way faster and there is no AP to intercept and do all the work for you. I understand that in a jet it's all about the energy management, but how often are you not configured for the approaches at a decent distance out from the airport? How often do you hand fly approaches? Some can say well I do it as often as I can and that's great, but 1900 people don't have that option. It's all the time and the other side of the argument is you don't do the typical 6-8 legs that at least at my company is the norm. From what I hear from people who fly both is that the AP has to be there for the jet. It can do a better job than we can 9/10 times so why not use it? I'm not trying to say o it's a harder plane to fly therefore I'm more tough because right about now I'm ready to bail from the darn thing.