I have many problems with standard YouTube, but I will focus on premium since I have YouTube premium. You would think that the app is 100 times better with premium, but it comes with its own problems from my use of it. With premium you are supposed to be able to closed the app without the app itself stopping, but there have been many times where the app will stop working when I close it or it will stop working after awhile of my phone being off the app. This is just one of the problems btw