I dunno if this is how Odin is typically portrayed, and therefore if it's good writing in the sense of being consistent with previous incarnations, but I personally enjoyed it as somebody who doesn't read enough of Thor to have formed a solid impression of Odin beforehand. I thought the character's dialogue was well done, even if it doesn't suit Odin.
Also the art looks snazzy. Except for the Watcher, but they always, always look dumb, so. Whatever.