Installation is quick and easy, just like installing an extension. That’s because under the covers, the user script is actually converted into an extension. This means that management tasks like disabling and uninstalling work just like they do with extensions.
Also keep in mind that some user scripts won’t work in Google Chrome yet, because of differences between it and Firefox. Based on some analysis that the current maintainers of Greasemonkey did, I expect between 15%-25% of scripts to not work in Google Chrome. If you find such a script, you should consider letting the author know. There may be something he or she can do to easily fix the problem. In the meantime, we’ll keep working on bugs on our side to bring our implementation closer to Greasemonkey.
[ via google]