I love this bottle. I had been eyeing them off for a while as they were a bit of an investment financially and I was undecided how glass would work as a baby bottle. But I’m so glad I finally purchased them. They work really well and I no longer have any guilt around the possibility that toxins are leaching into bubs milk. Super easy to use, and my 11 months old took to drinking from them straight away ( he does use the natural rubber soothers though, so this may have helped). Would highly recommend to anyone looking for a toxin-free bottle!