Cyclo-cross/tourers are nippier than proper expedition touring bikes , but more useful than purist cyclo-cross bikes or road bikes. They are the ideal for general purpose riding. If you dont plan to race, then the ability to make the bike practical with rack and fenders and wider tyres is a real advantage. Ive seen people strugling to turn a road bike into a weekend tourer or commuter, for the lack of a few threaded holes.

The Giant has brakes which are very close to the rims, so limit the tyre clearance to about 25mm. With a cyclo-cross/tourer style of bike to can fit 25mm for fast day rides, 28 to 32 mm for everyday riding, and off-road knobbly tyres for rough tracks or snow.

24 or 27 gears is a meaningless difference, both are more than enough for any use. I ride hilly terrain on road and trails with 21 gears.