Similar to a Netflix queue, HBO Go's Watchlist lets you keep track of any programs you plan on watching later. There is no limit to the number of items you can have on your Watchlist, and the items will remain until you delete them or until they are no longer available on HBO. The Watchlist even remembers where you left off on your last watched program, so you can pick up right where you left off, no matter what device you're on.
HBO Go's Sound quality is great, while its video quality is a little less so. That isn't to say that video quality is poor, but rather that there is some room for improvement. In fact, the preview stills are often stunning, which can be misleading, considering the level of graininess that you'll sometimes encounter. That said, video quality is still relatively high. It would also be nice to able to toggle between different video quality settings, according to the type of connection and device you have.
One thing I love about the app is HBO Go's Series Pass feature. When enabled, the app will automatically deliver every new episode of your favorite shows to your Watchlist. And of course, these additions sync to your account and are viewable across all devices.
Overall, HBO is a must-have for HBO subscribers and premium programming fanatics. While it could use a bit of help in the video quality department, that shortcoming is no reason to pass on this free app for viewing all of your favorite HBO shows.