These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Come for Kaijus, stay for giant robots punching them in the face.
Come for the great director, stay for the spectacular CG.
Ensemble Darkhorse: On This Wiki at least, the Russian Jaeger Cherno Alpha seems to be becoming a favorite, despite the fact it doesn't do anything in the first trailer other than get deployed and seemingly being destroyed in the Wondercon trailer. Could be its unique head and that it apparently has Tesla-infused fists.
Fan Dumb: Giant robots fighting monsters? Cool! Wait, is that robot using a tanker ship as a sword?! That's impossible because the ship would break under its own weight. THIS MOVIE IS STUPID!
Many anime fans tend to call it rip-offs of various mecha anime...even though, that's kinda the point.
It's gotten particularly vocal (and occasionally bloody) with Neon Genesis Evangelion fans. Time will tell if this becomes a full blown Fandom Rivalry or not.
Genius Bonus: To understand all the entries on the web page you need to be able to understand English, French, Latin American Spanish, Russian, Chinese and Japanese. The last three use their native writing systems.
Hilarious in Hindsight: Most likely unintentional, but the fact that the giant bots share the name Jaeger with the main protagonist of Shingeki No Kyojin who fights a different kind of giant.
Doubly hilarious if you know that Eren actually "pilots" one of those Giants to battle
Almost literally; people will watch it just for Giant Robots fighting Kaijus.
Legendary Pictures is also heading up the Godzilla remake, which is coming after this film, thus Pacific Rim is almost like a giant appetizer for Kaiju fans eagerly awaiting the Big G's return.