It's not that a program has to be hard to use to be professional, but the depth of the tools make it hard to use. For instance, a software package I've been playing with recently. Messiah. The materials lab in that has basic colour usage at the surface level with multiple options for specularity, glow, diffusion, transparency etc etc etc. The next material level below that allows the application of textures as well as the top level colour controls. The textures can be multilayered and alpha channeled. There's another layer of controls beneath that. When you add in the multi level options of the lighting system, it creates even more possibilities, effects and results. It's not something that a new user could just open and "click and create" like they can with Poser. The definition of pro app is not in it's difficulty of use, but in the depth and power of it's controls. Messiah, Lightwave, Max, Maya and others have that level and depth of power to their control functions. Poser does not. Poser DOES allow a complete newbie to click and create without ever worrying about deeper level control functions for the creation of an image/animation. More powerful applications expect you to work at it, but as a result produce far more impressive end results. It has absolutely nothing whatsoever to do with battling an application but rather with the power and versatility that application offers to create the vision inside your head.