i have one and it's definitely roomy and comfortable to use. it depends on how much you carry, but i fit in my zc, a cosmetics case, a key pouch, cell, id case, gloves, ear muffs, and even an extra pair of shoes.
roo!!! don't be afraid to cram you hobo full of stuff. it can take it. also if you poke out the corners, it can hold a bit more. depending on how you arrange everything, you can still maintain the bag's flat-ish shape.