It's fun if you know/can learn how everything works. Everything from the menus to in game functions are incredibly difficult and not intuitive at all. It takes kind of a commitment to understand what you're looking at but there's tons of shit to do and it's a ton fun
Very cpu intensive. You need to get into nodding community to enjoy it so check out the workshop or armaholic.com
I'm 2000hrs in to it now and am part of a milsim community 16aa.net however there are all different genres of servers available