Yeah, the game is perfectly good as is, aside from some content being missing. There's gameplay segments that could be bettered, and some scenes appeal more to me than others, but none of it is outright bad (other than the ending content being a bit too silly when compared to the more serious earlier game bits).
I guess I'm in the minority when it comes to enjoying Erik and Eve's content. Just playing the wingman to a friend is neat, as is the possible introduction of less traditional content with Eve, that makes a lot of sense to me.