I like that it works with multiple browsers (including mobile). It allows me to scroll through pages without using my mouse or having to take my fingers off of the keyboard. Sometimes in certain cases, you have to refresh your entire browser window after clicking one link which can be annoying when browsing on mobile devices. Some sites don't work as well such as YouTube videos but this seems to happen more often than not. There are many different options available if something doesn't work out right so try them all! Scrolling websites has been difficult before because they were either too big or had to use a mouse/trackpad. This solves both problems by allowing me to just click links instead of having to navigate around the page first.