The Behentrimonium 2% Conditioner by The Ordinary is a game-changer for those with fine textured hair, according to Casey's video review. Casey praises its lightweight formula, which prevents hair from feeling weighed down while still providing nourishment. This conditioner is perfect for those looking to add moisture without sacrificing volume. However, it's important to note that the review does not mention any potential drawbacks or limitations of the product. Overall, Casey's positive experience with the Behentrimonium 2% Conditioner highlights its effectiveness in delivering lightweight nourishment to fine textured hair.