Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Bottles !

I've used these bottles with my daughter since she was born. She is now 3 1/2 months. She's loved them from the start. I did try the wide bottle with her and she didn't take to the nipple, which seem to be very flimmsy. The skinny bottles are great. I wouldn't recommend getting too many 4oz bottles b/c they grow out of them quickly. I guess I'd say the best investment is to buy the 8oz, with a couple 4oz on hand for water or travel. As much of a pain it is to clean the many pieces from each bottle, I highly recommend the Dr. Brown's.