Saying Andromeda for Mass Effect seems too easy of an answer but it's the first one that comes to mind. I didn't even mind the technical and graphical issues (most of them were fixed by the time I played it), but the whole story is just so... bland and soulless. Quests designed by a committee, one-note companions, the most predictable cliche alien species ever, boring and predictable villains (they literally recycled the story from the original franchise)...