Safari queue has an awesome embedded reader. It has a clean interface, remembers where you stopped reading so when you open the book again, it will open to the page you were reading before.And that's all it has of good things. Now on to the near endless list of issues/lack of features:1 - Downloading is often a pain. I often out a videos to download and go to bed so that i have content ready to watch while commuting next day. Well, I always wake up to see many videos were simply not downloaded for no clear reason, some of them have a red exclamation mark on their side with no error message, and some of them are hung waiting for download... Awful.2 - The queue itself is terrible. You cannot group books by category, cannot tag them, can't do anything.3 - The app is not as responsive as you'd expect. Sometimes you need to tap the same button a few times to get the application responding to your touch.The list goes on but I think it all boils down to this: the app is sloppy, poorly implemented. If you are a member of Safari online, then download this app because it's your only option.Otherwise, consider subscribing to a training platform other than Safari.