Ranked in these QuestionsQuestion Ranking
Pro High quality
Most textures are available in 6k (if you pay of course).
Pro Texture maps are included
Normall maps, bump maps... no need to do them yourself anymore, not when they come with the texture, having been designed explicitly for 3d graphics.
Con Not free
After a thirty day trial, there is a monthly fee of 17$ monthly, or 170$ yearly to use polligon.