MAM bottles???

Bella3413

I have been trying to wean my dd. We have been trying with the born free and she olny takes 2-3  oz and it takes her forever and she fussies and cries. She is 8 weeks and 11  so i picked up these mam bottles at bru because the nipple looks a illt more like a real nipple and she just took 5 oz from it in 10 minutes.  i won't know if it was a fulke till we try the bottle a few more times but  I had never heard of  them before. Have any of you.??? WDYT about them???1/2