Tunejack?

Hello,

I'm needing to import my music from my iPod to iTunes. Now, I know you can't just hook up your iPod to an empty iTunes library -- I made that mistake before -- and I know there are programs that help you take music from your iPod and put it in iTunes, but I want to make sure it is the correct program before I try it. The one I've heard a lot about is called Tunejack. Does it work well, or should I find something else?

Thanks in advance!