Review of Steins;Gate 0

How do you make a sequel for a story that absolutely doesn't need one? Simple, you do the impossible. Nothing is out of reach for the mighty Hououin Kyouma. Despite being an unnecessary addition to the series, everything this show does adds to Steins;Gate and does not take away from it. It's not a perfect series, but still worth a 10, because it's still better than pretty much everything else but Steins;Gate. So if the whole series occurs in a world-line which is going to be replaced, what is there to do? Character development. A lot of character development, especially for Mayushi (who is the real heroof this story), but also for Okabe (who doesn't go by Kyouma anymore :(), and Daru, and new characters. Maho is a bit similar to Makise, though not a stand-in replacement as we also have Amadeus playing that role, and Maho has an inferiority complex to Makise.

Some of the plot arcs feel disjointed and arbitrarily put together, but each arc is pretty solid by itself. I can't talk in detail without spoilers. There are both thrilling parts and chill labo party scenes, and sad character moments (which are acted immaculately), similar to the original series.

One of the weaknesses is that a big plot point is explained by villain monologue, which is cheesy and stupid.

The score is the best in anime. Not "one of the best"; there are no anime with better soundtracks than Steins;Gate 0. It builds on the OST of Steins;Gate and adds even better songs. I'd point out specific banger tracks except that they are all bangers.