Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Was great for a few weeks

After my daughter got to be about a month old she kept sliding down. A few times she even moved up and her head was off the top of it. She's also kicked off the velcro wedges. Oh, and if there is an accident, forget about it. The entire foam turns yellow. The covering is also really tough to get back on once it's been washed. I was originally going to give it 3 stars cause it worked for awhile, but after reading my own review I'm changing it to two.