The LeyMorriso Waterproof Liquid Eyeliner is a must-have for anyone looking to achieve the perfect winged liner. Cynthia, in her video review, praises the eyeliner's thin and precise tip, making it effortless to create a flawless wing. The matte finish and quick-drying formula add to its appeal. With this eyeliner, you can easily achieve a sharp and defined winged look. Overall, Cynthia's positive feedback highlights the product's ability to deliver on its promises. However, it's important to note that the review does not mention any potential drawbacks or limitations of the product.