How do you like the Rush 12?
Honestly... I'm a hardcore devotee to Camelbak H.A.W.G.'s.... but only mil spec models no longer produced from 8 to 10 years ago in 1000 denier.
I have one in black and one in the 2003 Tri color DCU, they are not too big, not too small.. just perfect for my urban city usage/needs and they are ergonomically curved to the back.
Not easy to find, unless on Dweebay (new old stock).
However, I recently got into Crye Precision® Multicam (I never thought I would), I bought a new pair of Crye P. fire retardant mil spec combat pants on Dweebay.
I then decided to get a pack in Multi cam, did my research and bought a Rush 12 (in real Crye P.®) for $111.00 no tax, free shipping which came with a "free" knife and a "free" cap.
Built like a tank, made of 1050D, just minimally larger than my H.A.W.G.'s.
Superb multi storage space/s well laid out, the 'contoured yoke shoulder strap' system is great.
To answer your question.... the pack is great, better than expected!