Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Difficult and Messy...

I purchased this for my cats to try after a recent flea incident in the house. I tried to mix the suspension with their food (I tried dry food and wet treats)... they sniffed it and walked away. I then followed the instructions and had to hold the cat and squirt the suspension into their mouth. It was messy, they hated it.. and I felt horrible trying to get them to take all of it. I'm sticking with Frontline Plus...much easier for my cats.