I used my baby bjorn for about 9 months but found my back just got too sore after a little while. Recently got a hug-a-bub from ebay and am kicking myself that i didn't get one ages ago. Its so versitile with different ways to hold bub, simple to use, small to carry...it just folds up in a little sack and as the weight is distributed evenly i don't get sore. DD just loves being it it too