Model is well crafted with attention to details, comes with Vray and Standard materials. Vray material assigned by default in order to use Standard material open the scene, switch to scanline render and apply material from the first slot of the material editor to the model, or you can find materials in .MTL file that is included in archive. If any bitmap texture used then it is included in archive as well. Model is up to scale and ready to be used right away, just merge and render. (for standard materials you might need to tweak reflection levels to desired resilt)