The bag is really good, don't get me wrong. It looks good, the quality is high and it does the main job: it protects my Kemper Stage. There is also a smaller area for cables, etc.
The only problem for me, is: The shoulder strap!!!
There is only one strap and if I'm taking long trips with it, my shoulder gets hurt. It could also be a problem that I'm weak or I should go to the gym again, but the bag is very uncomfortable and, that's the only reason I'm giving it 4 Stars in general.