I'm a complete eye-liner beginner. The tip of the applicator is inflexible so it's perfect for inexperienced people like me! I love the broad range of colours they offer and they have no other rival where I live...(well except 1 but they charge twice as much and it's not as pigmented as MUFE). I have white, pink and lagoon green and wear them on my top lid. They last my full work day 6+ hours with no flaking or smudging. I rarely need to go over them. I think you can go crazy and layer the lighter diamond ones on other liners. They are just fantastic and so easy to have in your bag!