I am an avid Modo user. The program rarely crashes on me at all. It seems that Modo can be finicky depending on the computer setup. I can go through an entire modeling session (model, UV map and 3D paint) with no crashes.

It has an extremely streamlined and intuitive way of modeling and some extremely powerful tools to do just about everything. With v301, you even get a form of 3D sculpting in a traditional modeling environment, which is very nice.

One of the things that I like about Modo is that you can paint in 3D, including painting both bump and displacement/normal maps. Using Modo's Advanced OpenGL view you can see the displacement/normal maps actual displace the geometry in real-time. This is great for creating 3D game content.