I'll admit that I wasn't too excited for this one, mainly because the series had kind of lost it's way, and I feel that XV, while fun, was ultimately a step down from what made the series amazing. I was also a little worried when people said it wasn't going to be open world, I thought that was a bad idea. But then I actually played it, and in no uncertain terms, I was honestly blown away. I just misunderstood what people were saying earlier, it's technically an open world, just with a smaller one separated into more detailed sections, which I prefer to a big empty world. In a lot of ways, this is kind of a return to form for the series, definitely going for quality over quantity, even with a gameplay style somewhat reminiscent of Kingdom Hearts, which I thoroughly enjoy, it changes the formula while still bringing in some core features to the series. But what makes it even better is the story, they finally put more effort into all of that than the gameplay, the world building, the characters, even the progression, I can honestly say it's the best story in an FF game since X, and I'm not saying that ironically. There are genuinely parts I don't expect and a deeper tone to the whole thing.
My one gripe about it is the change to an M Rating, not just that, but the added violence and swearing, and to a lesser extent, sex. A lot of this can feel kind of out of place to a long time fan of Final Fantasy, and I honestly think they could've just as easily made it rated T. But ultimately, I'm not all that upset about it, because they don't just decide to fill it chock full of excessive swearing, sex, or overly gorey violence, they just put little bits of that in, and it still overall feels like an FF game with all the adventure, lore, and stakes in it. It doesn't try too hard to be dark and edgy, and keep in mind this isn't the first FF game to get an M Rating.
Overall, I think it is well worth your money, whether you're a fan of the series already or not, and I hope they maintain the direction of quality over quantity with future games, because one's like these prove that the series is not yet past it's prime.