I also new too, full time working mum.
Currently using Mamex for my little girl, Charlotte, 3 months old. Been on formula since birth due to my severe pregnancy rashes which took me a month to recover. So, unable to BF my girl. I felt that the formula is very good because Charlotte absorbed it well. She was 2.79kg at birth and now, 5.79kg. I introduced to it by Thomson Medical Center nurse where my little girl was born. She given me 3 choices, Enfalex, Mamex and Similac. I asked which brand is better and she told me if I can tahan the brand, I should go for Mamex which is a better choice of the 3. So I chose.
But always bear in mind all formula are heaty regardles which brand you chose. Once chosen and your baby drank well, it is advisable not to change. Otherwise, there will be complications.
Hope this helps.