I Had a Vulcan, great bag, unfortunately sat next to some chemical leakage that didn't agree with it.... replaced it with a Karrimor 75 and a couple of pouches, its ok, plenty of options, side straps for if you ever carry light!.. given the chance I would swap straight back to my old pack, but I'm not sure whether that is me being old, cantankerous and not liking too much change, or just because I seem to know were everything was, I could load up super fast, I had modded the pockets to fit my extras as well, I don't seem to have the same enthusiasm for this bag.
I have four add on side pouches for the Karrimor so its around the same litre age, but somehow it doesn't flow so well as the Vulcan.
as I hardly get out overnight now I am not that bothered, but when I start to get more ME time, and I have a one year old grandson now, who hopefully might be allowed out with the old crazy Grandad at some stage, I may well think about a change.
my advice is to go and physically get it on your back with something in it, try it with a coat on, and in a thin shirt, make sure you get the right back length if your planning yomping round, and don't rush into anything just because it seems a deal, bags are personal, make yours just that, after all it should serve you well for a couple of decades at least.
only my opinion, no offence meant, and I'm sure all the other bags and content are good.
Adam