Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Gopher It Worked for Me

I purchased the Exhart Gopher-It about one year ago. I must say I was dubious about the potential effectiveness of this technique of sonically repelling small animals. I followed the directions about placement and after about a month we noticed that we no longer have gopher tunnels in our organic vegetable garden of about 1200 sf. Because we are in a tiered garden arrangement we bought two Gopher-It's per 50' long tier, one for each end. This arrangement proved effective as long as I relocated the location about five feet every couple of months. Alkaline battery life is good, lasting about 7-9 months in moderate (never freezing) temperatures. I would recommend this product to a friend and I'm planning on buying some more to get rid of the gophers that have overrun our lawn area;)