I have both a Pikkolo and Tula, and I like my Tula better b/c of the straps to adjust for nursing. The Tule works well through toddlerhood b/c it is quite wide. It is also THE TRENDY CARRIER BRAND of the past two years, to an almost annoying extent. It is an awesome carrier though! Unlike the Pikkolo, you can't wear facing outward and the base doesn't adjust. I'd personally keep it, you can always resell it later. I started using mine when DD2 was 7ish months and I really do love it.
Mom of 4: Boy (10), Girl (7), Boy (4), Girl (2)