It's a game that lasts ... it lasts ... The main story is very long, and if you get into the quests you will have to spend many white night to arrive at the end. The universe is beautiful, the story is compelling. It lacks a touch of humor to make a perfect game.
From a technical point of view its main defect is balancing enemies sometimes too easy sometimes extremely hard without any logic or signs to warn you. A tip: save often.