Quoting Dexter's Mummy!:" no one "PUSHED" formular, he was obvioulsy hungry and she only gave it to him to tide him over untill she sees the consultent. giving my baby formular didn't "sabotage" getting my milk in."
It worked for us. DS had a bad latch and I didn't know it. I supplemented the first 3 days until my 5 day PP appointment and then they taught me how to latch him properly. Never used any formula after that and he breastfed for 15 months. I wish I didn't have to give formula, but it was a life saver for us in the short time after we did. He never had a drop of formula after that day 3 we supplemented.