Great Thing! Very durable and easy to clean (unlike Sigg bottles) Emil keeps drinks both cold and warm for a few hours. Super is that you can buy an essay for older children still (sip top) of a harder rubber or the like.
We have this Emils since the summer in the crèche in use and the kids love it! The only drawback is the weight, there are glass bottles, but these can indeed replace baby bottles if necessary even by NUK or other plastic.