I liked it, but...
there were some dreadful moments...
The Quantum Realm was of course, the focus, and I thought it was marvelous. Everything about it, all the creatures and the life that existed, how it looked and worked. Stunning.
I thought Paul Rudd was good in this.
Kathryn Newton took way too much screen time. She was quite annoying at times.
Michelle Pfeiffer did really well. Michael and Evangeline were ok.
SPOILERS
Cassie's hologram message across the Quantum realm was very very cringe and unnecessary.
MODOK was dumb all around.
Kang is supposed to be this multi-verse conquering being and he is in a fist fight with Scott ? Laughable really. Otherwise, Jonathan Majors did well.
However, I enjoyed most of the film, despite those awful moments.