While working on this model, I decided to make a small battle between the Corona Renderer and Vray. Вut unfortunately I could not pick a winner.
Render time was approximately the same - about 40 minutes at 1200x1200pix.
Corona's pictures look more noisy, but it gives them a pleasant mood, like the film photos. And of course, the setup process in Corona is a great pleasure.
But Vray still good enough!
Vray images:
Corona Renderer images: