Pros: Soft fabric wraps allow for a close and customized (not to mention cute!) hold. Because you can adjust the tightness, wrap it at different heights on your torso, and place your baby in different positions, it's easy to find a hold that works perfectly for you. Which means it's a great option for all different body types and sizes. I preferred wearing my son in a wrap during the first few months when he still seemed too tiny for a more structured carrier, and it's still a comfortable way to carry him even at 20 pounds.
Cons: Learning to wrap it properly takes a little practice (you might want to stand in front of a mirror!). Until you get the hang of it, you'll have to start from the beginning if, once you place your baby in it, you realize you didn't get the fit quite right.
Weight limits: Up to 25 pounds.
Tips and tricks: When in doubt, tie it tighter! I found that tying it tighter and higher on your torso than you'd think necessary made for the most secure hold.