I have now given the Moby a fair try. I like it. As previously mentioned, it's less stretchy. So it takes a little more precision in wrapping if you don't want the baby to be sagging down by your belly or pressed up tight under your chin. But in the end, same comfort for you and baby. I'm glad I started with the Sleepy though since the wrapping concept is a bit overwhelming to begin with and there's less of a learning curve with the Sleepy. But I'm thinking that the Moby might end up lasting longer by being less stretchy. Either way though, I think I'll get my money's worth, since to demonstrate it's longevity to a friend, I was able to wear my 33lb 3yo in it!