its ok for a daysack its not that big though, it has nice side pockets and you can slide an axe behind the side pockets which is handy!
I have had mine for about 2 years, i use it quite a lot when on an extended day trip or the weather is bad,. i like it. its not comfortable if you load it up as it has no frame, i padded mine with a chopped up camp mat in the interior pocket. the waist strap is to thin to be useful as it cuts in, but yeah its a reasonable pack, i prefer my sweedish canvas pack though as its more comfy and bigger and cheaper.
but i would say go for it, its a really sturdy bombproof and waterproof(ish) pack. i like mine