+Boss fights are generally entertaining and creative.
+Minions fulfill my need to collect cute nonsense.
-Cash shop on top of subscription. Already blocking off some good customization options.

+Updates regularly with content.
+Job wheel means I can be a master of all trades.
-Loss of a lot of beautiful fidelity and atmospheric tone in the ARR update.

+ARR added a lot of necessary variety to the overworld.
+Square has been making efforts to keep the game from just focusing on instanced content. Especially with last years patches.
-Various systems like Materia and Elements getting nerfed and simplified, removing what could have added a lot of depth and complexity to an otherwise by-the-books linear experience.

There is more, but I need sleep.