World Trigger is a very Shonen Jump-style manga. The characters follow certain tropes, but each have their own slightly unique aspects. The action is flashy and large-scale, but not very thrilling or suspenseful. Instead, the reader is drawn to the cool weapons and interesting character and monster designs. The high level Border agents are flashy and cool, but there are a lot of them. Each volume of the English manga features extra content and the original character designs and backstories of most characters, which makes it easier to keep track of them all.
I really liked the futuristic city setting, with its isolation and personal defense force – it reminded me a lot of Attack on Titan and Neon Genesis Evangelion. The neighbors are cool monsters, but not too creepy and not gory at all. The hints of secrets and mystery about the world the Neighbors come from is a definite page-turning aspect, and will keep me reading