My baby is so confortable in it.
Useful. I can clean the house with my baby on my back.
It is easy to install the baby in it, even in the back.
My baby start using it at 5 months and at one year old, still loving it.

I purchased a Chimparoo Trek last fall for my daughter, then 4 months. We love this carrier, it has all the convenience of a structured buckle carrier, but has a soft feel like a baby wrap. It's a wonderful combination of the two. We have tried several other carriers, and I often found them to be too hot or uncomfortable, but not this one. She loves that we can now use it for back carries so she can look at everything we do and watch the world from a safe and secure place.