Getting a precise alignment is the key to getting GOTO accuracy, and the Sky Sync option takes all the guess work out. Sure, we can all get the time, date, and location information from other sources, but this just takes all the hassle out of alignment.
If I travel to a dark sky location with either my CGEM or Evolution mount I don't need to fret with trying to find my Lat and Lon, it is done instantly so I can focus on other matters. To me, an integrated GPS is essential to the best observing experience, and this does the job great.