Our dog is a very persistent and successful escape-artist. I've tried many different methods to prevent her digging to escape over the past 10 years & many have failed. These barriers are by far the simplest effective solution I have found, BUT we found install to be particularly difficult. We live in the city and our yard's soil is pretty hard with lots of large stones/roots. I guess this isn't a flaw to the product at all, but we didn't anticipate install to be as difficult as it has been.