Pre-ordered it because of how much I enjoyed Far Cry 3 and 4 and I'm loving it as well. The gun mechanics are so much better than the other games. I like the interactive map although it can be hard to find the missions sometimes.
The perk system is also much different than the crafting system in the other versions although it is growing on me. On top of that who doesn't want a dog named Boomer, a bear named Cheeseburger and a cougar named Peaches.
Edit: If you have the game, don't do the final mission there's a bug that stops you from playing after you complete it. Need to wait for Ubi to fix it :(