I installed a previous give away version of GU Pro on a Win7 Pro laptop and haven't used it much but noticed immediately that it phones home at startup. Have been digging in settings to eliminate that. In the meantime, it's still useful as an alternative utilities tool whenever Win7 acts up which it practically never does. Downloaded today's giveaway to update the previous version.
Aside from that, I've found the daily WindowsDeal newsletter where the 100% off GU Pro offer is listed, interesting. Was considering 15% off deal for CCleaner Pro then searched "CCleaner coupon" and found a 25% discount offer. The free version has been good enough so didn't bite. Don't much care for CCleaner's new modern GUI.