As far as fillers are concerned this episode was very entertaining. It was cool to see the sound 4 fight their previous opponents all grown up. People will complain about it being unrealistic (Kiba broke through 3 rashomon gates) but who cares guys. It's a filler and it's not canon anyway, why do you care so much about it being a bit unrealistic?
At the end of the episode the sound 4 used some weird jutsu that seems to be sending Neji, Chouji, Shikamaru, and Kiba to hell which I found kinda strange. Honestly after that I don't have high hopes for the upcoming episodes but at least this one was entertaining. Honestly we should all just be glad it isn't god damn Road to Sakura or one of the other ridiculous fillers like "Naruto's Imposter"