The plugin is only interesting for visualization specialists who render often, need high realism and a high level of detail.
Never worked with V-Ray? Please test it out for free first.
Not making renderings every week? For a designer that needs an attractive image every now and then, the Flamingo render plugin is a good alternative.
Gijs’ testimonial from the V-Ray Website:
V-Ray for Rhino gives me enormous flexibility to generate a wide range of imagery quickly. The images I create are used to sell products before they really exist, which says a lot about the quality that V-Ray for Rhino is able to produce. Gijs de Zwart, Industrial Design Engineer, STUDIOGIJS