Good for newbies Rated 3 out of 5 stars

Good for newbies who want a simple privacy upgrade. For real effectiveness you need more advanced addons. I recommend Beef Taco https://addons.mozilla.org/en-US/firefox/addon/beef-taco-targeted-advertising/ along with NoScript and others https://addons.mozilla.org/en-US/firefox/collections/gracefool/privacy/

The website http://www.abine.com/preview/taco.php is misleading: Flash cookies are deleted along with other cookies since Firefox 4, so you don't need that feature, and as long as you allow Javascript on the page, you can be tracked and cookies can be re-created http://gracefool.com/how-you-have-no-real-privacy-on-the-internet

This review is for a previous version of the add-on (4.44). 

Thanks for the points you raise

TACO 3+ is unlike Beef Taco which simply puts opt-out cookies on your computer, nothing else.
If you, like many technical users, prefer to use Noscript and betterprivacy and other add-ons together, you are totally right, you can absolutely get all these features (and more).
We're sorry that you felt the additional new privacy-enhancing features didn't make sense together.
Lastly, thanks for pointing out the Flash cookies checkmark, we'll go update that.