I like Apple's Safari web browser. I don't love it—who can love a browser?—but I prefer a few of the integration options it offers over using, say, Firefox.
So a year ago I finally gave in and bought Saft, a third-party tool that extends or adds some of the 'missing features' to Safari.
Don't make the same mistake.
First of all, the demo, should you choose to install it, will throw up a pop-up every so often after just a couple of days, with no option to deactivate it.
It has no uninstaller. I'm still not quite sure what to do with it.
Its upgrade system requires you to put in your email address and paypal transaction code, although does seem to show up in Paypal's one year history. So much for the free upgrade. Why I can't just use my email address is a mystery.
Lastly, it doesn't even add all that much functionality. Until Hao Li decides to offer a proper installer/uninstaller and a decent upgrade interface, skip it.