So from my experience in A2 it seems like the storage is for one character only, which felt like a bit of a bummer since my fighter keeps looting ranger weapon and vice versa. (:
I personally feel like AoC is making it a bit too difficult to "swap mains" in the long run, which might hurt the game a bit when people feel "stuck" with characters when there is no good way of pivoting class choices. I have personally always thought that the more stuff that is account-wide; the better (GW2 is my favorite game in that matter - just about *everything* is account wide).
That said, I have never played a game with heavy focus on character-locked storage/inventories and would love to receive some insight from the players from L2 and the other games that AoC is aspiring from. Could someone please chime in?