I recently heard about como tomo bottles. I tried all the "breast" like bottles 3 years ago with my daughter and none worked. I will be breastfeeding and bottle feeding breast milk so I chose these bottles with this baby and am hoping they work. I have read so many wonderful reviews on como tomo bottles that I bought some for my little boy (due in 6 weeks) Have any of you mommas used them? Pros and Cons please?