Can I ask why you think that way? I agree it has a good foundation, but it severely lacks polish, especially when comparing it to SMT / Persona games:
The balancing is just bad, main jobs are almost too useful, with the stats mostly coming from job ranks, you are actively punished if you do decide to switch jobs regularly and follow the main story doing that, the last set of bosses have too much HP while dealing too little damage, so it just takes long to take them down, without you ever being in danger.
The environmental objects most of the time do not work, the friendship follow up attacks are dealing reduced damage compared to the guaranteed crits you get through an actual player turn, and especially in larger arenas you might not get a player turn as the automatic follow up takes too long and the enemy can get up before your next turn.
The game gives you no way to see enemy details during a battle, furthermore "resist" has several different meanings, so an enemy can resist blunt, slash and shot damage, yet they resist 60% blunt, 40% slash and only 10% shot, something the game never tells you, unless you try out all damage types with the same character and track damage numbers.
As is, the main issues are the battle system, which just lacks a ton of polish, if they do end up polishing this out, fixing all the stupid small bugs (I had characters teleport to enemies multiple times, because they kept running into parked cars) and balance it way better in terms of level curve, maybe even provide difficulty settings, you know like DQ and Persona, as well as all other RGG games have, this could end up being really really good, but saying "favorite turn based combat rpg" is just ignoring all these flaws.