A massive improvement over the original Arena in a lot of ways. Combat is more fun to play and with a bit of a bigger roster as well. Story is better structured compared the original Arena though I have a slight issue with it. I get Atlus wanted the P4 and P3 casts to have their own campaign but honestly I wished both were combined into a single campaign cause this is a narrative that works better when both casts get equal time to share the spotlight rather then one at a time. I like the game overall thankfully and I would play it again.
P.S. Love that Adachi got his own story dlc and he had some pretty good development in it.