I haven’t found anything better than Keyshot. And as with all rendering packages, the standard features are not enough as good renders require lots of preparation. In Keyshot you can modify a lot - customize HDRI environments, you can add lights to manipulate shadows, do a flat render for manipulation of individual parts in photoshop, basic animations, while keeping a good overview through the scene hierarchy which preserves the imported model’s hierarchy.
The only thing bothering me about Keyshot which I haven’t solved yet is how to work with geometry -spheres and planes- as emissive lights. Even with a high (40) sample amount and ray bounces you get dots in less lit places, for example with vehicles underneath edges and near the end of the light falloff. In animations these dots flicker so the whole approach does not work - If anyone has a solution it would be great.
