Using sliders in web design is a largely divisive tool for UX design. There are a lot of parties on both sides who either hate or love sliders. But at the end of the day, it’s up to you to decide whether or not they are suitable for your needs.
For specific applications, sliders are a fantastic and interactive way to present information quickly and simply. They’re most useful when comparing content or showcasing portfolios. It’s also a great way to present updates for new products or features.