Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Look at the back straps! BUY SYNERGY WITH BACK SUPPORT!

Don't you think those back straps will pull your shoulders forward? YES they will. My back started to hurt after 5 minutes walking with my 9 lbs baby! I give not 1 but 2 stars because it is a good quality, strong, VERY easy to use baby carrier, BUT invest more money in it and buyBabyBjörn Baby Carrier Synergy - BlackIt has that magic back support! P.S> You have to adjust the straps as your baby grows then nothing will press against her diaper area or anywhere else.