DMC5 was a game I played at around the time of release and remembered being completely underwhelmed by it. I wasn't as big of a fan of the series by the time 5 came out but if I was, I'd consider it to be a massive "disappointment". I still feel similarly now but instead I view the game as a game with great combat system held back a weak campaign. The best way of describing DMC5 is that it's a DMC game designed by hardcore fans made for hardcore DMC fans. It's hard to overlook that whenever I'm playing the game. Everything from the story to the way the campaign is structured gives me that vibe.
The story of DMC5 I found to be terrible even at the time of release. Everything about it feels it follows the same logic of stories like Metal Gear Solid 4, Final Fantasy Advent Children and JJ Abrams directed Star Wars movies where it's just a series of throwbacks and refrences and that's it. To give an example, V and Urizen aren't even their own characters, they are both two halves of Vergil. Say what you want about Arius and Argosax from DMC2 but they were at least their own characters. Vergil himself just wants power because reasons so he summons a tower...again. Nero is Vergil's son and this is revealed so late in the game that it almost feels like a desperation attempt to connect Nero to the overarching plot. Then there is the fact the game will just throw in stuff like, "remember Morrison and Patty from the anime?" Remember Nelo Angelo and Mallet Island?" "Remember Credo?" "Remember Cerberus from DMC3?" The final boss is even against Vergil like DMC3.Everything about the story is designed to made for diehard DMC fans first more so than because it wants to be interesting on it's own. Sure, some can say you don't play DMC for the story but it's an example of an overarching point I'm making.
The gameplay does fare better by comparison but it does have it's own issues. Nero can be pretty enjoyable to play as. I'm used to playing as him from 4 so coming back to him in 5 did feel I was right back at home. Devil Bringer and Trigger are gone but now he has Devil Breakers, I do think this system is interesting but the problem is that the game gives you so many Devil Breakers to choose from and throws so many at you in the first few minutes that it's hard to really know which one you'll like the best. As a result, I stuck with the same Devil Breakers you start Nero's sections with like Mega Buster and Overture ocasionally using random ones. Anything else felt like it wasn't worth the effort. Exceeding does seem to have it's fans but not something I want to do in the moment.
V has been criticized to death and yes, he's bad. The problem with his sections is that it's just a game of moving around the character model on the battlefield and watch your familars do all the work. At first, I thought it was a game of using melee and projectile attacks to build up Devil Trigger to do massive damage. Eventually, I realized that you can cheese many of the V sections by mashing square and triangle constantly. Due to this, I never needed to buy any moves as V and just relied on the above mentioned tactic and Devil Trigger. To add more insult to injury, you can get high style points doing all of this. I'm wondering why these sections exist when it introduces a playstyle that is worse than Dante and Nero on top V not being an original character. At best V's parts can be used a way to stockpile orbs for Dante.
Dante is and unsprisingly the best character to play as. You got Style Switch and the awkward progression system from DMC3 is gone now. At first, I was annoyed by how much using Stinger in DMC5 caused a knockback effect on enemies which makes it harder to continue to combo on them after doing it but that encouraged me to used weapons like Balrog and the Motorcycle. Balrog is interesting in that you can transition between punches and kicks and using Swordmaster attacks with that as well as the Motorcycle while OP can be very fun to watch.
However, late game you get a new weapon as Dante but by that point it turns into a boss rush so it doesn't give you enough time to be familar with that weapon and putting orbs into isn't worth it.
You are also better off saving up as many red orbs as you can since along with that and the gold orbs you can cheese the very challenging Vergil boss at the end. Hard to believe that the gold orb system was worse in the vanilla release.
Remember what I said about how DMC5 was made for diehards? This is what I mean. If you play DMC games over and over again on higher difficulties and to get S ranks all the stuff I'm saying won't even be an issue for you. Coming from someone who considers himself a casual fan of the series, I consider DMC5's campaign to be too underwhelming on its own and doesn't make enough of an impression on me to want to do those harder difficulties and S ranks.
Overall, DMC5 can have great combat but the underwhelming campaign structure really can sour it.