Nestle Good Start makes their infant formulas with what they call "comfort proteins" that are a smaller particle and easier to digest. I notice less gas and spitting up than with other formulas. Josephine will not tolerate anything less than boiling with this formula, unlike the enfamil.
The company is very generous with coupons, They do not participate in the WIC program, and you can choose soy or milk based. There is not a milder formula out there. This is her favorite infant formula, along with KMart's Little Ones.