What I like most about Grayscale is that there is a ton of built maps, textures, lighting tools, and base-assets to work with and combine to utilize in conjunction with other content in your project. They also have amazing online tutorials. Review collected by and hosted on G2.com.

I think that the GSG library can sometimes have bitmaps that are a little strange in terms of realism of wood grains & fabric stitches, but I am being nit-picky. Review collected by and hosted on G2.com.