I will be rating ANIME so I won't be comparing how well it represent LN or manga.
\\ spoiler alert just in case //
Art: 9/10
Little improved from S;G S1, but it's still that great world portraiting art style.
Characters: 9/10
Pretty much the same crew from S;G S1, but we are introduced to three new important characters and one old-new character: 1st is Hiyajou Maho. She's an ex colleague of Makise Kurisu, who died in Beta world line, she's often shown depressed about her research not having breakthrough and naming herself " Salieri" in contrast to Makise. Maho has a very understanding and empathetic personality, which is shown on multiple occasions, where Okabe sees her in embarrasing situations, which leads to her panicking, but after calming down, she never flames Okabe as she knows it wasn't his intention. Another notable character is Alexis Leskinen, he is the antagonist of S;G 0 and he always has a happy mood. 3rd characters is Kagari, she is adopted child of Mayuri in the future, she resembles Makise Kurisu a lot in appearance, through season she's fighting with amnesia and manipulation. The old-new character is Yuki Amano, she is future mother of Suzuha Amane, she's alwyas happy personality and enjoys her time with Daru.
Character progression: 9/10
Since time in S;G 0 is moving we some sort of development from every characters, but even here Okabe plays major, we can see his sadness affecting others, mostly Mayuri is hurt by his sadness. Others are trying to act normal, but even they from time to time show their concern about Okabe. If I would have to pick who got most development I would choose " relationship" between Okabe and Maho.
Story: 8/10
Plot armor drags it down to 8. S;G 0 storyline is going in Beta world line, and it's showing Okabe's attempts to prevent war for time machine in order to protect Mayuri , by just not doing anything and trying to convince others to give, because it won't bring anything, ultimately he cannot prevent inevitable and is forced to fight for Mayuri once again and having to do time traveling once again. Now about plot armor, in last episodes, where is Okabe is trying to protect time machine, there are shown rather rather OP and unrealistic fighting skills of Suzuha and Kagari, this annoyed me greatly, since S;G was always close to real world rules and seeying two teenage girls taking down many of elite soldiers left some bad aftertaste on me.
Story progression: 9/10
Alpha world also makes an appearance for a bit, and it adds some more details to story and explores the option, what would happen if cliche " MC made it in time to < insert title >" would happen it's really nice addition to story. Story goes incredibly well, 23 episodes of S;G 0 happening within a year, which is ideal time and many interesting aspects of story and some secrets of our charactes are shown. Also devastated future makes appearance, when Okabe is suddenly thrown into the 2036 and he has chance to see future and his friends within. He has to do hundreds maybe thousands of time leaps in order to reach his present ( past from future perspective) and later we get to see " mad scientist" for a bit.
Villains: 8/10
Alexis Leskinen: 8/10 Professor at Viktor's university in the US. He's shown his passion for Japan couple of times. In the future he sents Kagari to past in order to help him with his goals, he's enjoyable villain I am always glad to see him when he appears.
Sound: 10/10
I was thinking for a while if I should rate it 10 or 9 because I wasn't really sure. In the end I think I've done the right decision. Openings and ending are phenomenal. Ending is absolute 10 and might be even above, it perfectly and masterfully fits the sad and little depressed mood of S:G 0.
So overall rating of Steins Gate 0 is 8,86/10 that means 8 ( if I wasn't doing " objective" review I would give 9). S;G 0 was brilliant and it deserves even better rating, but many people does mistake comparing it to S;G S1, but those two seasons are different so don't compare them that hard.
