The finale was exciting, had many plot twists that you'd expect from PLL, had some satisfying character moments, and overall left a positive feeling for viewers about where the characters ended up.
My only criticism is that the finale seemed rushed. AD was the character at the core of pretty much every conflict that occurred over the course of the last two seasons of PLL, and within one episode, we were introduced to AD, learned everything about AD, and said goodbye to AD. We came into this episode knowing nothing about AD's identity or background, only to see the entire development of her character unfold and our entire understanding of Spencer's family get flipped upside down all in the last episode of the series. It is very unlike PLL to confine a huge plot point to just one episode, and the fact that it was the finale just left something to be desired. It almost made the writing of the finale seem lazy, even though you can tell from all of the flashbacks to earlier events that the writers had an idea all along of how it would end; they just may not have portrayed it on the screen as well as they could have.
Overall, it was an entertaining finale and I do think everything revealed about AD made sense; it was just a bit rushed.
My only criticism is that the finale seemed rushed. AD was the character at the core of pretty much every conflict that occurred over the course of the last two seasons of PLL, and within one episode, we were introduced to AD, learned everything about AD, and said goodbye to AD. We came into this episode knowing nothing about AD's identity or background, only to see the entire development of her character unfold and our entire understanding of Spencer's family get flipped upside down all in the last episode of the series. It is very unlike PLL to confine a huge plot point to just one episode, and the fact that it was the finale just left something to be desired. It almost made the writing of the finale seem lazy, even though you can tell from all of the flashbacks to earlier events that the writers had an idea all along of how it would end; they just may not have portrayed it on the screen as well as they could have.
Overall, it was an entertaining finale and I do think everything revealed about AD made sense; it was just a bit rushed.