Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Pass

Way too complicated to be helpful. I have the regular Bjorn that my son loves, but it is just too hard on the back to wear for an extended period of time. I thought this design might be a good solution. There were so many areas to adjust on this model that neither my husband nor I could do it easily. It was very difficult to transfer from different sized people. Given that it only goes up to 25 lbs, we returned it and got an Ergo Baby Carrier instead.