Hi mama! Ako personally hindi pa ako nagtry ng Similac One sa amin, but a few of my mum friends switched their babies to it and they said okay naman, walang digestive issues and the babies adapted well. Since every baby's tummy is different though, siguro best to check with your pedia muna before switching, para sure it's the right formula for your lo, sometimes kailangan ng gradual transition din para hindi ma-upset ang stomach ng baby. Let me know how it goes ha, curious din ako hearing from other moms about their experience!