Yes it's very very good. You get mixed reviews because it was quite buggy when it was released, and the tech wasn't ready for such a demanding game, and multiplayer was laggy. All these issues got resolved over time with the expansions. It also has a great weather and full day/night system, and making your own missions in the sandbox is a blast, want 20 tanks battling it out? Just put them there and watch. The single player is great as well, nobody who played will forget a *certain* mission. Yes that one. On top of the campaign there are also a lot of custom scenarios you can play from the go. Simply put OPF is the best in his kind, hard as nails, full of features, you don't get better value.