The picture quality is lousy, the image twitching constantly because it is always back and upstream between full screen and image with a dynamic bar. Nothing unreasonable. Better it is to the website of the sender. Unfortunately, the ratings appear at the top, which point to a good result. If you look closely, one realizes that the reviews with 5 stars from earlier times are. Obviously, the operation of the app has deteriorated, perhaps incorrect programming of an update.