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

My barn doors always have water coming in under them after a good rain. I purchased this product to put an end to this annoying problem. I installed the strip about 3 months ago and so far so good, not a drop of water has come under the door. I will definately do the other door in the spring I would have given it 4 and a half stars if it were an option. The only reason that I did not give it 5 stars is that I almost ran out of adhesive. I am a firm believer that it is not a successful job until I have as much glue on me as the job does. A little more adhesive, then definitely 5 stars.