As an Avid AC fan who has completed all games to completion, I have to say this game was a chore for me. Some memorable moments like some of the combat abilities you acquire were somewhat enjoyable, but overall just the game just felt monotonous. The missions have very little variety, it's just hack and slash, level up, collect gear, wash, rinse, and repeat. This plays much like AC: Origins (Egypt) and much less like the ACs that preceded the game. And I really liked first few installments of AC games.
If you a history buff and enjoy learning about Ancient Greece, then this is the game for you. My favorite part of the game is the discovery mode, I love learning so getting a tour of Greece was really enjoyable for me. It seriously blows my mind this game literally gives hours worth of a virtual tour around Greece. Its like why bother visiting Greece when you can do it playing this game.