Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very poor construction

I was so hoping I would like this. I liked that you could raise the top part so I could raise the papers up to eye level - but the angle adjustment is horrible, It DOESN'T LOCK INTO PLACE!!!!!! Once you set it up at the angle you want.....if you touch it - it will collapse!!! Talk about frustrating. That is the most ridiculous design ever. Why doesn't it lock into place? Don't you usually flip through papers you might have on a stand or flip through pages in a book on a stand? The slightest touch makes it collapse. Needless to say I returned it and bought the Fellowes Booklift Copyholder #21100...........much better and it folds flat when you're not using it. DO NOT BUY this Insight Book & Copy Holder unless you like things collapsing on you! Total waste of time & money!!