I love how easy it is to use and that it's open source! All in all, this library has made me become more productive by allowing me to create presentations like never before! It was difficult for me to know where the end of one slide would be when creating a presentation using HTML. This library solved that problem by giving you the option to add a custom marker at the beginning or end of each slide. The only thing that I don't really like about this software is that it doesn't support markdown syntax for titles of slides. You can customize every aspect of your presentation. From color scheme to font size to animations to transitions. Also, it's very easy to edit the code once you learn what you're doing. For example, I had trouble adding an image to my title slide until I realized that the library uses css class names instead of image tags.