To read about all the pros of using a baby sling, go here:
We used one with Ari. As I just posted on Facebook, my only regret is that I did not use it more.
Some of the many things I like about having a baby sling:
She was held, which is something babies need a lot of.
I had my hands free.
When we went somewhere where there were people who were strangers to Ari, she was in the sling. There was no way anyone could just grab her from my arms. Trust me, people love doing that. And, believe you me, nothing pissed me off more than someone ignoring my child's needs and making her cry because they wanted to cuddle her. Yes, I get it. I love holding babies too. But, you have to build the sense of trust first, remember?
Have I mentioned bonding?! There is nothing like feeling your little one close to you. Ari is three and I still love snuggling with her!