It might sound incredible, but it's even lamer than its predecessor, the Go app. Currently it just won't play anything (it didn't even bother coughing up an uninformative, generic error message until I uninstalled + reinstalled, now I get at least that much...) - that may not be the app's fault, but that's the baseline. I just have no patience left to list its usability issues. (You'd guess a streaming veteran like HBO surely knows what a fine video player is like, but you'd be wrong.)