Saffi Eriksdotter W/ a Creature with counters on it.

[DarKLaVa888]

So the text for Saffi Eriksdotter is "Sacrifice Saffi Eriksdotter: When target creature is put into your graveyard from play this turn, return that card to play."

When the Creature that was put into the graveyard is returned, does it come back with counters that were previously on it?

[cdr]

400.7. An object that moves from one zone to another becomes a new object with no memory of, or relation to, its previous existence.

The creature that returns from the graveyard has no relation to the creature that existed before.