The slider has the ability to simply take the width and height of it's parent element. Which means that if your side is fluid and responsive, the slider will be fluid well.
The script has features like speed detection and inertia to make it move as naturally as possible. It shines on touchscreen devices, and looks just as cool when you use a mouse.
You don't have to include a CSS file, or write any JavaScript code. You just write really simple HTML code, include the .js file and you are good to go. As simple as it gets!
You don't need to have images with exactly the same size as the slider. No matter what proportion or size the images are, they will always fill the slide if you use the "fill" class. Alternatively, you can use the "fit" class if you want the image to fit inside the slide, not loosing a pixel.
Rockstar Slider is as lightweight as it gets. The JavaScript file is only 7kb in size and there is no CSS file!