All three batches have a very faint baked vanilla odor that is hard to smell when the soap is dry and the scent is just a little stronger when the soap is wet. The scent does not vary much between usage rates.
My overall opinion is that if you are wanting a barely there vanilla scent, then you can use the Vanilla Oleoresin. If you are wanting a stronger Vanilla scent that when sniffed shouts, “I’m Vanilla!” I would recommend using Vanilla Cream Fragrance Oil to meet the needs of a stronger scent.
So … our summary is not a failure, but not desired either.