Poser was very easy for me to learn because of it's GUI and similarity to Bryce 4, which is what I started with. Face it, some people will find it easy and some won't. I for instance have a hell of a time in regular 3D apps like TrueSpace, 3DSMax and Blender because to me, their UI's are not at all intuitive. It boils down to what people like and how their minds percieve space.