Absolutely garbage. Don't buy. Not open world, no levelling system, weapons suck, combat sucks, feels like there is literally no point in killing enemies since you don't level. They don't drop interesting loot. They storyline sucks. There's no special system like perks. In comparison to every other game calling itself an open world, this meets almost none of the criteria that should make it just that.
The game is bad at leading you through it's own map, doesn't tell you how to get to some quests. Indicators are virtually non existent. You will die lots, and it will not be fun. I wish this game was exactly what it was supposed to be, but it's not. Don't waste your money.