I've used a Moro for 4-5 years. I recently tried a Robbys II. At first I was sort of so-so about the Robbys II, but after using it for a week-10 days, I found that I liked it better than the Moro plus it is so light that it weighs almost nothing and you don't even know you have it on, where as the Moro is big, bulky and heavy.
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