Nostalgia is a powerful tool. It signifies an emotional attachment to something, and that's valuable in its own right. Games like Shovel Knight or Pillars of Eternity wouldn't have happened if some didn't hold a longing for the Good Ol' Days.
Pure; unabashed reverence for the original trilogy; Fun; interesting hero characters; A visual / audio blockbuster
Shallow progression; Faceless soldiers with little meaningful customization; Lacking in content