I was meant to see this within 2 days of release but I had a flat tyre that day and missed seeing it with my mates, and didn't really get a chance after that
But I was able to watch it now it's on HBO Max and really enjoyed it. Definitely agree with a few other posters that it has Se7en vibes. One or two people complained it was too dark at the cinema, but I gotta say it looked great on my OLED TV, didn't have any issue seeing what was going on at any point.
They alluded to 'The Batman' creating riddler (or certainly, the riddler stating that Batman gave him inspiration) so that was good. That's been a theme in the arkham games before.
It quadrupled its budget, so a sequel would be nice. Maybe they can use some batman villains that haven't been used much in previous movies. Villains who would fit more in to a World with Batman being a great detective, as opposed to a caped crusader/superhero.