Get one !, I've used an old karrimor hot rock, for many years, it now leeks & stinks to be frank !. I have tried other models & makes then always gone back to the hot rock(its the fore runner of the sabre 30), so before Christmas I treated myself, to a predator 30 while they were on offer. Its a style & size that suits me & I'm happy with, it feels substantial, hold everything I need it to, has the side straps that will hold an axe & a bucksaw, a great pack.
Rob