Originally had this at 4.5 but after putting more time into the game (and still barely scratching the surface), its overtaken ck3 as my favorite paradox game to this point (until victoria 3 drops). The level of control you have over your country is great, with so many different things to be changed and messed with. Colonization adds a whole new aspect of management, and the different scenarios and country mission trees make for tons of replay-ability and a good template to follow on early runs.