I have just returned from a three month round the World trip using this rucksack and loved it - it's comfortable to carry with lots of adjustments. The zip access to the main section is a god send and I really enjoyed the top bag that pulls down at the front with the clear panel for documents; I also detached it and took it onto planes and buses as my carry on bag. It really is nearly perfect, I just have a couple of enhancements to suggest. Top bag should have a carrying handle on the top. The rollers that return the bag are too weak so it can be floppy. The rollers should be strengthened and it would be good to be able to lock it in place when it's on top of the bag so it doesn't flop. A zip pocket in the top bag would be helpful. The rain cover should be removeable and should double up as a transit cover for flights. The hip strap padding should be extended further round the front.
Comfortable, zip access, detachable front bag
No handle on front bag, rollers too weak