If you're looking for a Persona spin-off, Persona Q is a much better use of your time and money. Meanwhile, if you're looking for a rhythm game first and foremost, there are much better options for you to persue. Persona 3 and 5 Dancing aren't bad, but in today's rhythm games climate - they needed to offer a lot more to stand out from the crowd.
Hyrule Warriors: Definitive Edition lives up to its moniker, and makes a compelling argument for both fans and newcomers of the game to pick it up. It's a welcome addition to the Switch's library, though anyone that already had their fill elsewhere shouldn't feel the need to upgrade.
Xenoblade Chronicles 2 does a lot of things right, but suffers under its own weight and poor design decisions. Despite everything it's the first exclusive jRPG worth owning for the Switch, and with a little more polish it could be one of the best jRPGs of the last few years.