The game was and still is a classic and offers fun for countless of hours. Move to a modern game engine hasn't really changed that. On the flipside, this is the old Colonization. The improvements are very minor, mostly "freebies" from the transition to the modern engine. Anyone expecting a true modernization of the game concept is bound to be disappointed. While Civilization gameplay was improved in countless different ways over the years, the same does not apply this time.
Colonization was always the "simpler sister game" of the original Civilization, but just porting over the gameplay to a modern game engine feels like a quick hack, even if the lower price point somewhat reflects that. A good game, but not "Colonization 2".