Short version for those who enjoyed Enless RPG: This second game in the series is an upgraded version, it is better.

Solid and fun multi-layered sandbox.
The open world is fun to see evolve: Towns and Factions grow or get wiped, new threats arise...
Fun fantasy combat with no zone of control and different skill trees for weapon and magic types.
The large cast of foes provides different threats and one tactic might not work for all foes (which is good).
Character evolution is pretty open and a bit of investment in the Intelligence attribute provides enough skill slots to create powerful synergies.
Party relationships while a bit repetitive, offer one more layer to characters.
Dungeon events and quests suffer from lack of variety in both execution and narrative content but they work well mechanically.
Overall, this is a fun and colourful open world worth a playthrough.