I've got one of these.
I looked around a long time for a mountaineering rucksack which had multiple sections - the Arete Tour has small expandable side pockets and a separate bottom section which can be zipped separate or included in the main part of the sack. As I was looking for a mountaineering sack with this feature (fast access to waterproofs or food without having to rummage) this fits the bill which few others do. Nice simple black colour as well.
The back system is not adjustable however, so if you aren't going to need the mountaineering features on this bag then other rucksacks have the same features as above but with a more advanced back system - which some would find more comfortable for heavy loads.
With a careful approach to what you take and how you pack this rucksack is certainly large enough for overnight trips even in the winter.
Hope that helps
Chris
