For many uses (especially those related to specific web sites, web apps, services, etc), they are better at customizing the web experience compared to browser e

For many uses (especially those related to specific web sites, web apps, services, etc), they are better at customizing the web experience compared to browser extensions, but for some uses it isn't. One use I used it for is to be able to view files on GitHub without needing to load all of the scripts from GitHub (which are much larger than mine). This works without any additional network connections, because the data is included in the HTML file. On some web pages, I use userscripts to add accesskey attributes. Sometimes, I will fix bugs on web pages by adding user scripts. I find document.evaluate very useful in many of these cases and many other scripts I have written. However, for many web pages, I find user CSS is useful and scripts do not need to be added. (Sometimes, I add both.)