One of my favorite apps of all time. Before Stoop my inbox was a mess and now I'm easily hitting inbox 0, while having all the newsletter organized in a separate app. Already recommended to bunch of friends and they all got hooked.
Now curious about the new YouTube feature. My first impression is: Not all the channels that I'm subscribed on YouTube should go into my Stoop. Only the channels which I'm super passionate about, which is one or two. Bear in mind that Stoop can get messy as well, similar to an inbox, if you just blindly subscribe to whatever you find interesting on the web.