Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Greatest tool ever!

I bought this with the hope of saving time and money from going to the shoe repair to stretch my various high heels. As my feet are wide, this is imperative if I want some comfort with new shoes!I've used it on 2 pairs so far and it works great. True, it doesn't get down to the toe for pointy toed shoes, but it still widens across where i need it most.I gave it 4 stars out of 5 only because of the pointiness factor.