Really underrated hidden gem movie. It is about Frieza's brother who came to earth to kill Son Goku. At the start, of the movie he criticized Frieza for letting that Saiyan go and it would bite him in the ass. So there is some maturity in this character and I like it. He is more than just another strong opponent. He has the features of an older brother were you can see he has gained life experience and in how he talks to his underlings. What I like about Cooler's troops is they have individual personality. They aren't controlled by fear like Frieza's soldiers were, parody villains likethe Ginyu Force nor are they mindless followers awaiting orders. Aside from that Cooler assist his underlings in situation.

Comedy is great in this movie. Be it the interaction between the members of Cooler's troop or Goku and Chichi interacting about what is important.

The action speaks for itself. Piccolo is always one of the best characters in the franchise and gets the best fights. The members of Cooler's force use unique techniques and have decent team work. Sauza uses the infamous ki sword we know from Goku Black and Super Vegito before it was cool.
But obviously Goku vs Cooler was the highlight with one of my favorite Super Saiyan transformation sequences.

Sound and animation is pretty good. We see quiet a viarety of places and Cooler's attacks affecting the environment leaves some interesting visuals.

If you haven't seen this movie, you should do yourself a favor and watch it. Forget about it being non-canon or some bullshit. This is one of the things why people love Dragon Ball and you should give yourself that pleasure.