I cannot express how much the Pet Barrier fence system has changed EVERYTHING for us. We live on a rural property. Our 3 year old Neopolitan Mastiff Apollo (60kg) was escaping our fences daily to chase cattle on a neighbouring property. We had tried everything to stop him and the constant anxiety it was causing for our whole family and the neighbours was intense. On a Sunday afternoon after a particularly bad chasing event I was at my wits end and starting googling training collars and found The Dog Line. I made the call to find out what my options were. Colin was amazing. My husband I sat at the dining table with Colin on speaker phone going through our options. Colin helped us to understand why the fence system would be a better option for our size property and the issues we were having with Apollo. He guided us through calculating exactly how much wire we would need to fence our 1 acre house yard and took all the guess work out of getting exactly the right system. He had a comprehensive quote in my inbox the same day. The system was shipped the day payment was made and we received it 2 days later. My husband spent those 2 days watching all of Colin’s instructional videos on the Dog Line website and on YouTube. The fence system was very easy to install. We had a couple of questions and we were able to call Colin and get immediate answers. We did the training with Apollo that Colin recommended and Apollo immediately responded. I have waited a month before writing this review. This system has been a total game changer. Apollo does not leave the yard anymore unless he is on a lead and being walked by a family member. We do not have to monitor his every movement in fear of his roaming and getting into mischief. He will happily lay in the sun and exist within his boundary without issue. We have all noted that he is calmer and easier to manage now that he has a clear boundary. We no longer have to lock him up when we go out. Our neighbours are thrilled that he has not once been on their property since installing the system. From that very first phone call til now I have been extremely impressed with Colin and the dog Line and would not hesitate to recommend to everyone. We had a major problem and found the right person with the knowledge, experience and right product to solve it. Thank you Colin.