Kaishounashi

Hi there - I'm new to these boards and i must say there's some excellent advice floating around. However, after reading all the relevant posts I'm still not sure as to which backpack is for me.

I'll be going to Germany next year for around 14 days - does anyone have advice on the proper capacity backpack for this duration of travel? I'll only be moving around 3 times during the trip.

I've got my eye on the MG 45 by the north face:

Volume: [M] 2750 in3 (45 liters) [L] 3000 in3 (50 liters)

any help would be greatly appreciated!