My chip almost 2 months refused all teats (even those of Avent baby bottles that supposedly mimic the shape of the breast), I bought it after hearing about ... Indeed it is very effective, after a moment of hesitation she accepted: the texture remains different from the nipple, but the principle is the same as suction breast. This has the advantage of accepting a bottle, but the disadvantage that the setting time is as long as a feed in !! Gradually (as part of a mixed feeding during weaning) I noticed that my smart to fall asleep Ascending on the bottle as it is quite tiring to "pump" ... As she s 'bib was used to', I went after one month in bottles Dodie Initiation Rate 1 (silicone nipple but softer and with 3 speeds), it takes much more quickly .... and that wash much more easily because the dual system of 1st Years pacifier is particularly difficult to clean (it should all wash immediately after feeding if the milk remains "stuck" in the interstices of the 2nd pacifier, gray!) So a good choice (transient) for babies who refuse other nipples / baby bottles, but the best would be that the teat is made of latex and non silicone: decision would be faster and therefore not need to change bottle yet!
