A.P.
This is a late response, but I have both a sling and a Mei Tai. I love the Mei Tai best hands down. It balances the weight on both shoulders and is very adjustable. I was able to roll the bottom up and make it shorter for my newborn and now I am starting to be able to unroll it to adjust her height. I can snuggle my daughter facing me or even carry her facing out so she can see everything. I have yet to tackle carrying her on the back but I think I will be able to do that as she gets older. The tying is scary at first and my husband had to help, but now it is very easy and quick. I actually think it is quicker and easier than any of the buckle carriers. I went to www.meitaibaby.com to learn about the carries.
Good Luck!
A.
P.S. My friend makes slings and her website is www.lanepieslings.com. They are very good too.