Overall the game improved on almost everything the past games offered, so it's definitely a worthy successor, however I feel like the dungeon part of the game is significantly longer than the previous games which leads to huge playtimes as many have reported on here, which might be a negative for those that preferred the out of dungeon activities. I also enjoyed every single boss fight in P5 and I feel like it might overall have the most memorable boss fights in the series.
And also don't be stupid like me and do your mementos missions, at one point I stopped doing them and then almost got slaughtered in the later dungeons.
Does that mean there are less out of dungeon events in general?