Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Downhill slide for Iles

Greg Iles first few books were well-researched, thought-out, and overall good reads. His last two, 24 Hours and Dead Sleep, have been disappointments. It appears he would now rather do little research or preparation and instead rush his books onto the market. I am hoping that in his next novel he will return to his earlier form.