This product is pretty much what it's made out to be - a baby carrier that does the job and doubles as a backpack. I wanted something not very bulky for carrying my 20 month old boy for places which did not easily allow a stroller. Narrowed down my choices to the Kelty and the Deuter Kangakid (which looks like a good product too). Ultimately I chose the Kelty for the fact that it could carry up to 18kg, has a removable front pouch, and torso adjustment. Anyway, back to the Kelty. The torso adjustment is a great feature, allowing you to try different positionings for a more comfortable carry. Everything appears to be good quality, well made, including the adjustable seat height for the baby (to get him to the right comfortable level to view above your shoulders). It has a good base as well, which means you can better ensure everything is in order on the ground or on the bench, before you carry baby/bag onto your back. In essence, I like this product for several reasons: 1, its serving the need its supposed to - used as a bag when needed, and for carrying the baby when needed, for short distances (for long trekking, you are better off with a specialised carrier). 2, everything about it appears of reasonable quality (including the hooks to adjust seat height, the easy-fasten waist belt, etc). 3, my baby seems quite comfortable in it! The first time he fought strongly and wailed, not knowing what this is about, but once forced on, he was very happy to see the bag, knowing it meant a walk was in short order. 4, over the Deuter, it carries up to a heavier weight. 5, kept as a bag, it serves a purpose (unlike a true blue carrier), and is more easily stored away. For the occasions of a nice, short Muir Woods kind of nature walk, its ideal. Only thing is, I still haven't found the perfect adjustment to make the weight less 'felt'. I can go around only up to 45 minutes before feeling the weight...and I am a relatively fit guy! In the army, an equivalent 25 kg backpack seems to hurt less. Ultimately, if you need a convenient bag that does not serve just one purpose, this bag does the trick.