I've taken my OD version wild camping in the New Forest on several occasions and it's easily coped with loads of kit: three season bag, pillow from home (takes up a lot of space but comfy), a Thermarest blow up mattress, DD tarp, clothing, cooking equipment, food, water and extra kit. Loads of space. You can throw it around and not have to worry about it getting damaged. Also, the entrance to the main compartment opens up nice and wide so it's easy to find individual items.
Last summer I spent a week on the Pennine Way and took the bag without the side pouches and simply used the compression straps to keep everything stable and close to my back. It was comfortable to hike long distances with and although I'm sure I could find a lighter weight bag with more air circulation I realise I'm going to get sweaty no matter what innovations some bags offer, and I don't have the storage at home (or loads of excess cash) to spend on two bags; the Sting affords me a strong all-rounder that I estimate will last at least a couple of decades.
For six months the bag lived in my bedroom and I enjoyed looking at it. I know that's sad but t's a good looking bag that does everything asked of it. I even modded it by cutting excess off the straps or removing them where not needed to save weight, sewing on a OD Union flag, and getting my own name stencilled and attached to the velcro strip for the full Vietnam effect. What a nerd, eh?
One thing I would have like would have been for the two little pockets on the side of the main compartment to have been deeper. Currently they are ideal for wedging your walking/bivvy poles into or for a Gransfors Small Forest Axe to sit in securely but I would have liked to keep my camera in one of the pockets and my mobile phone in the other (I sometimes like to listen to music on the trail). As it happens I simply found an old camera case and attached it to the hip belt strap and put the phone and camera in there.
Also I think there are more luxurious, thicker, wider shoulder straps available on more commercial style bags which might aid comfort, but I never find the bag uncomfortable apart from the usual discomfort attached to strapping a heavy bag to your back, so I'm nitpicking here.
Whatever the colour I would say the Sting is a great all-round rucksack, either on the trail or in the forest wild camping it won't let you down.