Good stuff. :)

Some WP optimisation plugins can be very complex to configure, and make a mess of your site if you don’t know what you’re doing.

This one can still mess up your site, but it hides the settings that need a bit more knowledge to configure, so most people can just opt for the standard settings and get some good gains on the performance of their site.

The expert settings are there if you want to get into them for fine grain control of deferring javascript files and the like, with more significant gains if you know how to configure them.

All in all, a good plugin that competes with any of the rest out there. Does better than most, and is neck and neck with the best alternatives.