A majority of the reviews on Amazon.com for Dr. T's Snake-A-Way snake repellent are positive, with almost half of the reviewers giving five stars and reporting that the product works. A few negative reviews include complaints of a strong smell of mothballs or that snakes did not leave.
Almost 100 percent favorable reviews are reported on the HavAHart website, and 77 percent of reviewers on the DoMyOwnPestControl website give it five stars as of October 2015.
Snake-A-Way, a snake repellent approved by the Environmental Protection Agency, was tested at the University of Florida for its effectiveness. Results of the test indicate that Snake-A-Way's success varies by the type of snake, with 100 percent effectiveness on coral snakes and garter snakes but only 17 percent effectiveness on corn or red rat snakes. A chart showing snake species and effectiveness values provided by PestProducts.com indicates 91 percent effectiveness for various types of rattlesnakes.