Instruct: Classify a given review into positive or negative sentiment.
Query: Great product

I used one fogger in each bed room and living room for flea problems, just before we left the house on a all day trip, when we returned about 12 hours later, the smell was gone and no need to open any doors or windows. So far I don't have see fleas or feel bites on my legs. I believe it is a very good product ( so far ). I keep you updated on this. About the spray in face part, you need to read well the instruction before you pull the trigger, if not the fleas laughing at you when it fog your face :-)