Had no problem downloading the assets (though it does take some time), and I think it looks fantastic. It's a bit of a problem, though, if you launch it while in the middle of a seasonal event ... and it doesn't include the quests for that event in the sidebar. I would also add my voice to the chorus that having limited access to basic game functions is a drawback, and means that we have to split out time between the mobile app and the browser version, which ultimately doesn't help things much.
Still, it's a valiant effort, a great look, and I'm assuming all these things can be fixed. So onward and upward!