I was wondering if anybody has experience with baby backpack child carriers. I know that they are quite bit and bulky but my baby is getting too heavy for the baby bjorn; she weights 9.2 kgs. I like that the backpack carriers has some storage space for diapers,bottles and other things which I like. Also, it seems that my baby will have a good view of things; she really enjoys the baby bjorn b/c she can see people and such. If anybody has experience with the backpack child carriers or any helpful opinions, it would really be very helpful. Thanks so much