Rated 4 out of 5 stars

As a developer, I find this add-on very useful for making slight tweaks to the sites that I use ever day. I also found a lot of the user scripts really useful.
Overall, it does exactly what I hoped it would.

The install process for a new script is easy so you don't have to know Javascript but I did find that a lot of scripts don't update frequently enough to keep up with changing sites. So when a site changes I sometimes have to manually edit a script to get it working. That's not the fault of Greasemonkey, though.

This review is for a previous version of the add-on (