On one hand, appreciate the fact that Arnold pretty much gets closure for every element in his life: he finally accepts and returns Helga's love, Arnold gets his parents back, and the show gets the ending it has always needed. The animation is pretty good by modern standards, and the voice actors chosen for Arnold and Gerald match the way both characters sounded in early seasons (guess Gerald's tonsil operation finally smoothed over lol).
Unfortunately, I have a lot of…