Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good but not great

I've been using another brand of insoles for several years but tried Spenco mainly because they are about half the price of the insoles I've been using. The Spenco insoles worked okay but do not help my feet, legs and back nearly as much as my tried-and-true brand. So, needless to say, I've changed back to my old brand.