INDIRECT SPOILERS!! (Knowledge of Batman games required)
[Running on 2 hours sleep before viewing] I was in a positive mood from the night before, and I was expecting The Batman to be a more dreary film (which it was), so I wasn't in the best mindset to watch the film. That being said, the detective work was more 'front and center' in this movie, and most of the relationships are previously established, requiring one to know a bit about the Dark Knight's connections before watching. For instance, The Penguin was never Bruce's childhood friend, and Catwoman's protégée (Holly Robinson in the comics) has a semi-analogous equivalent. Bruce Wayne is more petulant towards Alfred in their limited screen time, and some relationships build up too quickly. The film has a *very limited sense of time passing to differentiate one day from the next. The story unapologetically takes gritty beats from the Telltale Games Batman (season 1), but leans harder into the detective work, as was promised by the director.
Was it a good movie? ...Probably. It wasn't super fun, but it was clear that a lot of thought went into it. The cinematography was absolutely gorgeous. There are issues though - such as Batman's theme being overused, Batman being on a crime scene and only one cop complains, or Batman tampers with a crime scene while police watch, to an even more egregious example, which gets conveniently forgotten about two scenes later.
The Riddler is a competent, capable villain and his reinvention makes him more relatable to the class struggles in Gotham City, but he functions more like Anarky (Batman: Arkham Origins) than his usual lonesome self. He is always one step ahead of Batman, though it doesn't usually feel like it until after the fact (and that's a good thing). Robert Pattinson is Bruce Wayne in his Bat suit, which is a welcome change of pace. He is non-responsive in ways that emulate Kevin Conroy's portrayal in The Animated Series, eliminating the chattiness of Bale's Bruce, and you can see Bruce Wayne under the mask, due to the use of ocular cameras while he investigates, requiring him to look longer at things. This Bruce is a studious, though quietly haunted man. An observer who feels compelled to try to save the city, despite inspiring the wave of psychopaths that will inevitably follow if this movie is greenlit for a sequel.
The action is nice, albeit brief (which is realistic), and Bruce employs few kicks in his earlier fights. His martial arts is traded in for physicality, practicality, and ferociousness, and - it works. He's a bit more fallible than even Affleck's Batman, but he's not as polished either. His armor is very bulletproof, though despite this, Batman survives two different instances that should've killed him outright. He also only has one Batarang, and his cape actually doesn't work, something that fans will certainly miss.
As for the others? We don't see much of Alfred, Kravitz' Selina Kyle was perfectly on-brand, Colin's Penguin was obnoxious, but in a way that Arkhamverse Batman fans will feel at home with, and the Riddler was a dark, Nolanverse-esque re-imagining of a character that hasn't been portrayed well in many years. Robert Pattinson's Bruce Wayne is a publicly-acknowledged recluse, and you can see the man under the cowl most of the time.
TL;DR - More grounded than the Nolanverse, while not as compelling as that or Joker, this film has some interesting ideas for many of its characters. The movie lacking a sense of time passing really undermines its credibility (to me).