Frankly, Four isn’t interesting enough for us to benefit much from getting his side of things.
Was it interesting? Yes. Was it a quick read? Yes. What it kind of cute, seeing a few more of the layers to his relationship with Tris? Yes.
Would I recommend it to anyone to read? Maybe only the diehard Divergent fans. It was probably a good writing exercise, and there were some good details about Four that make you understand him better and believe that he’s got much more of a part in everything that’s happennig. So, if you were reading the trilogy thinking “I just want more Four!” then this collection of stories is absolutely for you.
Again, the writing is solid, it’s just the idea that seems a little lacking. Four just isn’t as great as Tris.