Finally bought Final Fantasy XV, and... while fun, it really should have been an original IP that has an occasional nod to Final Fantasy.
It doesn't feel like a Final Fantasy game at all. More like a Kingdom Hearts game with all the Disney and FF elements removed. Everything, from the gameplay, music, character design, and story so far has all screamed Kingdom Hearts to me. Given the amount of creative staffing overlap between this and KH3, I really can't say I'm surprised in the slightest to say any of that.
Also the character names are just ridiculous, like someone just started chucking words through an online English-to-Latin translator and at the end of it all went "BEHOLD! I HAVE CREATED NAMES!"
It's a fun as hell game, but... yeah... just not really worthy of the once-vaunted Final Fantasy regency.
I think it should have either stayed as Versus XIII or become its own thing entirely -- it feels like too much a compromised product.