First of all, don't listen to the bad reviews bashing the game for its bugs.
Bug fixes had removed some of the known bugs and I have not encountered any severe bug that would hinder the progress of the game. Some minor bug can easily be solved by a quick quit-and-resume method (like the the Fast Travel not showing up at Quarryend).
Have made it to the second map, it is stunning. The landscape is well-designed and looks fantastic on PS5. Liking the game thus far and am definitely looking forward to the coming DLCs and expansions.
Gameplay-wise, there is improvement from the first game.
-Parkour is more engaging and fun now (eg double jump, wall run, tic tac, etc)
-Exploring towns in the dark is much easier this time around, Volatiles do not lurk the streets at night anymore, but when the infected are in high alert, Volatiles will be spawned to haunt you to death (imagine wanted level with 5 stars and a military tank spawns in GTA).
-Tons of weapons to be picked up and they scale to your player rank so every weapon in the open world and dungeon helps.
-There are optional buildings with in-depth layouts now, it is fun to loot the treasures within while killing things to your heart's content. It is no longer like any random shops/houses with easily reachable loots in DL1. There are infected guarding the loots now!
-Stealth element is back. Play like a ninja!
Story-wise, so far it has been captivating. Every story quest comes with a surprise in plot. I like the idea of having to side with either one of the factions, giving the game some replay values. You got to encounter different NPCs and side-quests if you side with either faction.