Pros: very supportive, easy on, great for toddlers
Cons: somewhat bulky when sitting or worn under a coat
I absolutely LOVE my Ergo, and if I had to choose only one carrier for a toddler, this would be it. We started using this when DD was about nine months old, and it really has made life easier. She prefers a front carry (still, at 21 months), and this makes it easy to stay warm when it is cold out. This is definitely one of the best baby purchases we made. I agree with another reviewer that the waist padding is comfy but bulky, so it is not easy to sit comfortably with your LO in a front carry. The straps are of the same weight, but they don't bother me.
I do think the price is a little high, but they are really well made, so I'm hoping mine will last through another child. Overall an excellent buy.