Great atmosphere and narration with an interesting premise, at its best, it certainly should be 4-5 stars. However, the game is extremely drawn out and downright tedious at times. My recommendation, if you are interested and dont mind spending a good amount of time, then pick it up during a sale.
The game without addons is simply incomplete, and even if you do research what DLC would be good it feels like a giant pyramid scheme. Most disappointing are the space battles, there is 0 depth to it, even ancient games like Star Wars Rebellion do it far better. If you read everything you understand the game well enough, but it is still riddled with terrible design choices and mechanics, worst of all is war in my opinion, you have to lay claim to systems, and when the war ends you only keep the systems you claimed, as opposed to all the systems you conquered.