I'm starting to get overwhelmed by the game, frankly. I'm around 55h in at l33 and when look at the map I'm quite baffled by the amount of stuff left to do and places I haven't even been too... Don't know how far I am in the main story (I have to destroy the Paros fleet currently) but I don't think I can even get close to 100%'ing it. It's still rather fun and beautiful even with the repetition but it's just feels tiringly big at times.
I tried to finish areas and have done the starting area, Megaris, Phokis, Attika, Argos, some of the smaller islands like Paros and Keos (still some quests left here) and a bit of Korinthia but there's still loads...