Each preset has been carefully crafted and tested to work with a wide variety of images. Some presets will result in subtle adjustments and others in more dramatic changes, but all presets are fully adjustable to suit your photography style.
Every preset is meant as a starting point. You will always have to fine-tune the basic settings, especially Color-Temperature, Exposure and the Blacks and Whites under the 'Basic' panel.
If you don't currently own an Adobe Lightroom license, but would like to give it a try, Adobe offers a 30 day free trial version for Mac and PC. All presets will work with a trial version, since it is fully functional.
Please note: Due to the digital nature of the products, all sales are final. There are no refunds or returns. You can download 10 free presets before purchasing, to convince yourself of the quality.