I can't believe this episode is receiving so many bad reviews... o.o
Personally, I LOVED it. The episode was really emotional. Very sad yet very happy at the same time. The story was amazing. It almost made my cry when the flashbacks of Sally and Goth were shown... I could care less if this episode is classified as a "filler."
I agree 100% with @raz1337 :3. This episode is a great example of how close Pokemon and their trainers cane become. Plus, battling isn't the only thing in Pokemon .