have used my new 256 at work for a fortnight now. a few thoughts:
1. i'm 6'1 and still find the strap too long. saying that, i took it off on day 1 and have no intention of using it.
2. the 'compartments' inside are completely useless and just get in the way, it would be better if it was just one big cavity.
3. i didn't realise until today, but the stud/popper closure on mine is completely off centre and slightly crooked.
4. it gets heavy really quickly.
5. a small zipper...