Parents...any LO currently drinking or feed on Nan Pro 1 and thinking abt switching to other brands? Any particular reason for switching?

I was told that Nan has taste closest to Breastmilk. Nan HA taste more bitter than Nan Pro. We tried Dumex before but managed to total breastfeed when my LO hit 2.5 months old. He was born 4kg and has severe eczema now. :(