Presets in Luminar is a very powerful way to work with your images and speed up your workflow. It is much more flexible than you are be used to if you are familiar with Lightroom. With Luminar presets you can also include how layer blends with those below it, and you can set a specific opacity for a layer that you applied the presets to. You can apply masks to each individual filter within a preset.
If you are used to working with Nik Collection Plugins you will soon recognize that using presets in Luminar is quite similar to applying recipes in Nik’s Color Efex Pro 4.