At around 3 months, my baby started to spit up A LOT after every feeding. Then we noticed our LO was spitting up every so often an hour after feeding. We made the move to switch to this formula. We were already using Enfamil, so it wasn't that big of a deal. Doesn't mean I wasn't nervous, but it worked out for the best. We noticed our LO wasn't spitting up as much or not at all after feeding. We did notice a little bit of spit up in between feedings, but it wasn't enough for us to freak out over. Our Lo still wears bibs to protect clothing, but they are more of a fashion statement now. Though this tends to be a little more expensive, it was worth it. You can find all kinds of coupons too, especially if you sign up with enfamil. Some local groceries even give you some. Target has given us a $15 off coupon before. That was a BIG help! But most of the time, we'll get $5 off coupons.