Usually they have items that are for sale at a discount, but occasionally there is a freebie.
Such as right now they have MAGIX PC Check & Tuning 2011 (normally $49 USD).
I installed it. Seems okay... Not sure if it's any better then Advanced System Care Free, CCleaner, or any of the others.
You have to give Magix your email, so I'm sure I'll be getting an "upgrade offer" for version 2012 soon...
Anyway, the site is worth checking out every now and then.