: Test the items with different body types. Common issues in CC bundles include hair clipping through shoulders or clothing "tearing" during animations.
: Check if the textures are 2K/4K or if they look "pixelated" or "blurry" when you zoom in on the character.
: Look for "High Poly" vs. "Low Poly" counts. High poly items look better but can lag your game if you have too many; low poly is better for performance.