Hi, I have the compG package and would recommend it if you have the extra cash. The red caliber brakes look cool and the tap shift is fun to play with especially if you're riding on a twisty road.
The bigger wheels and tires are a plus as with the stability control. But I have heard that the compG's ride is alittle more firmer than one without it. If you like the cushier ride feel, you might want to do without it. You can't go wrong either way. Get one, you won't be disappointed.