Steve Kimes’s review published on Letterboxd:
Okay, the two main characters have cancer, so you know that there's going to be some sentimentality and if you have any kind of emotional intelligence, you are going to cry. That's a given.
It's based on a book by John Green, and if you know anything about him, you know there's going to be a healthy dose of humor and it will be smart.
What I didn't expect is how well the romance would work, touching and powerful.
All these elements together make for the best teen romance I have ever seen. I enjoyed this much more than I thought I would. And it has one of the most refreshing uses of Zeno's paradox ever.