Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not so easy diner chair

I was pretty excited to get this chair because I was tired of tripping over my 12 month old daughter's high chair. It was going to be nice to have her eat right at the table with us. I had some trouble attaching it to our table. With our style of table (hidden leaves) I couldn't attach the chair without having at least one leaf up and in use. Once she sat in the chair, she sank to the back. There is absolutely no back support. It was like having her sit in a plastic bag. I rolled up a towel and put it behind her and she was a bit more comfortable. Needless to say, I returned the chair. It just wasn't worth the hassle.