The worst parts of this app are the 15 sec unskippable ads in the middle of videos. I understand sponsored posts in my feed... but after watching a three minute video and getting interrupted BY THE SAME AD TWICE in the middle of it, I question why Facebook sacrificed user enjoyability to pad their pockets. Even a short advertisement before the video is better than in the middle. Its so distracting and interrupts the concentration/enjoyment of the viewer. 1/10