Instruct: Classify Amazon reviews into positive or negative sentiment
Query: gone with the wind

This product has no trigger. So, As soon as you connect it, it starts spewing out. Whether it's connected right or not. Also when you shake the can the plastic fittings come loose. I know more went into the wind than the car. Get something with a trigger so you can control it. I bought AC PRO. It's a bit more expensive, But it's the best I've used yet. Walmart has started carrying it. And my AC is cold and holding the charge. I don't know if SUB ZERO is any good. I don't think any went in my car, so I can't judge that. Only the delivery system.