It took me multiple actual years to get through this. It just felt completely endless with no sense of actually making progress, and that always felt completely overwhelming. In a vacuum, I liked the idea of taking to the sea, taking down enemy ships and docking at islands to grab treasure and other collectibles, but in typical Ubisoft style they overdid it. I got burned out playing this more times than probably any game I've ever played, but I did keep coming back eventually, so I can't say I didn't fundamentally like it.