Easy to use - most scenes can be rendered with default settings, without changing a single parameter! Most new users are able to learn Corona in 1-3 days. And it is a deeply integrated 3ds MAX plugin, not only an exporter.

High quality results with no interpolation artifacts or splotches. Only 100% crisp ray-traced shadows and GI. Even biased results are very close to the unbiased reference.

Fast rendering with immediate feedback with the progressive rendering. Corona can quickly render complicated scenes with glossy reflections, soft shadows, massive vegetation, etc.

Fast development - There is a new major version every few months. Most serious reported bugs are fixed in a matter of days. Users can propose new features, and most of the good suggestions are implemented in the next major release.