Instruct: Classify the given Amazon review as either positive or negative.
Query: Don't do it!!...they "suck"

It's been 3 months and I've officially broken down. The Avent bottles are HORRIBLE. They leak!! Its ridiculous how much effort I have to put into screwing on the nipple just to get it right. Not to mention wasting my precious breastmilk.Its time for me to switch brands. I just can't take it anymore.I saw the FAQ on their website and they do address the problem with a nice, easy solution. In reality its not that nice, neat and easy. Its a pain. Trust me, with a newborn you don't want the stress of constantly fixing this mess-Mrs. R. Kilpatrick