Simply put, it doesn't a whole lot much better than this.

The story goes beyond usual shonen fare by having a more meaningful story, which is paced in such a way that there's a continual sense of progress towards the ultimate goal. The characters are enjoyable. The production values are fantastic, and the animation particularly shines, with fluid, fast-paced fight scenes and gorgeous backgrounds. I'll also mention that the music (by Kajiura Yuki) is excellent as usual, with a couple of great songs for the OP/ED. I was a bit surprised that the singer changed (aimer this time instead of LiSA), but after watching the story arc I felt that both aimer's voice and the overall musical feel of the songs could not possibly be a better match for the story, atmosphere, and characters of this story arc.

That said, this is an anime based on a shonen manga, and it has some shonen tropes, like characters fighting until it seems like they can't go on, at which point someone else shows up, or they wring even more strength out of themselves than they thought they had in them. This happens multiple times during the battle (which is a long one that spans more than half the story arc).

Other than that minor complaint, and the lack of focus on the female characters (again, shonen), this anime is really outstanding.

While some people may want to give this anime a skip due to its content level (violence in particular), for those who feel they would be comfortable with the content, it's a definite must-see!

Violence/Gore Rating: 8

Though neither the rating of the show nor overall violence level has changed much, subjectively I found there were a few specific acts of violence that really made me wince, moreso than the first season or Infinity Train (movie or TV arc). It's hard to say objectively whether there was more violence than earlier seasons, but I think there was a bit more. There's also a rather strong horror element revolving around an enemy who appears in the last several episodes. I wavered between 7 and 8 for this, but ultimately picked the higher number due to the increased disturbing and horror elements.

Nudity/Sexual Content Rating: 3

For an anime arc set in the entertainment district, I thought it was incredibly restrained. Three young boys infiltrate Tokyo's red light district to try to find the whereabouts of the Sound Hashira's wives, but absolutely nothing offensive happens. There's no spying, peeping, or accidentally witnessing the women or girls of the entertainment district changing, bathing, etc.

On the other hand, the female demon the characters are fighting for several episodes is extremely scantily-clad. While this is in the context of a battle and isn't exactly a sexual situation, I can't say she isn't sexualized. She works as a courtesan, and there are numerous shots of sexualized parts of her body. Additionally, the women fighting on the Demon Slayers' side also all show quite a bit of cleavage, though they're much more modestly dressed than the demon, Daki.

Finally, I'll add a content warning for the cross-dressing of the three boys and the fact that Uzui Tengen has three wives for anyone who may be offended by these themes. Neither of these is shown in a sexual way. The cross-dressing is played for humor, and absolutely nothing sexual is shown between Uzui and his wives.

Potentially Problematic Theological Themes: 4

One difference from the other story arcs is that there are a few angry/bitter comments made by some of the characters towards the gods/Buddhas, like "If _____ dies I will never pray to you again!" or an enraged comment by one villain character about Spoiler: wanting to kill all the gods and Buddhas for taking away his one joy in life even though he never had anything good happen to him.

Other than that, it's largely the same as the first season. I'll repeat my comments that while the Blood Demon Art used by the demons (including Nezuko) is indeed magic, the sword techniques used by the Demon Slayers is more an artistic interpretation of a breathing technique that pushes human abilities to their limits and doesn't need to be interpreted as "magic" per se. Also, like in the first season, there are numerous references to non-Christian religion and worldview, like praying and making offerings to deceased family members, references to the afterlife and being reborn, family members who passed away coming back to help and advise Tanjiro and Nezuko in moments of crisis, and some brief passing references to Buddhism and Shinto.

Other Potentially Problematic Themes: 3

The version I watched (Crunchyroll) seemed to have more profanity than earlier story arcs in the English translation. Although it occurs more frequently, it tends to be on the mild end of the spectrum.

Some courtesans are briefly shown holding smoking pipes.

Some flashback scenes briefly show a child being physically abused.