My New Sona Build

So with the new item, Duskblade of whoever, I can see damage Sona's build changing. Before I was building , but not I'm thinking about build Duskblade instead of the Void Staff. Not only would this increase my mvoement speed, it woud allow the crit chance on to help me more than it does already. And that passive.... Forget dealing 1.2k burst on Q+passive+AA, now I will be able to deal a nice amount of damage 2 seconds after that.

Has anyone tried using this build yet, and if so, how is it? [slayer-jinx-wink]