Bests & Worsts Reviews from Amazon

I was given a 6 month old Doberman who had been through multiple owners because he was "high energy, unruly, uncontrollable." That may sound like most dogs but this went to the point of aggression towards humans who attempted to tell him no, or off if he was on the couch. If I walked him and we came across another dog, he would lose it to the point of turning on me if I restrained him in any manner. I got bit twice. He needed help, bad. I could see he had tons of potential. He is a gorgeous red Doberman, his problem was that no one had ever put any effort into him. He had no clue how to act. Naturally starting this process at 6 months had it's complications. He wasnt a little puppy that could be pushed around. I started first with pinch collars, etc. This made tremendous differences but he learned really quickly that if he was off the leash he could do as he pleased, tearing up the house, chasing the cat. This collar fixed that almost over night. I've had him for three months now and this collar for a month. With careful use it is a miracle worker. You absolutely positively have to have a plan and work this in to how you train though. This alone will not fix your problems but it has huge possibilities. I can now take my 9 month old Doberman out in the yard with our free-range chickens and goats and he keeps his distance and follows me. I can make him lay down in front of them, walk to the opposite side of the yard, and call him to me, no problem. Note again, this is through careful training, not just shocking the dog because you get mad. 95% of the time the vibrate or tap button takes care of the situation. That's just a vibrate sensation on his neck, no shock. The two shock buttons are a god send when the dog is at an elevated state, for instance decides he is going to come at you, attack another person, animal, etc. A quick pulse on the boost (which just a note, I've tested both levels on myself, they don't feel good but they won't kill anyone) and he usually sits and at the most two of those instances and he's done. He's learned and won't need that again. No more constantly being concerned about what he's going to do next. Like I said, this is a great tool to have at your disposal, especially to take training to the next level. **Update at 8 months from purchase**: The collar has worked great to date but in the last week or so the range on it all of the sudden dropped to about 30 feet or so. Called the company and they are sending a new replacement with a prepaid shipping label to send the old one back, no questions asked. Great customer service in my opinion. Update: 3 years later the second model has sort of slowly but continuously lost power over time. Furthest it will go is about 25 yards. That's the mini. I've decided despite that due to my situation (living out in the middle of nowhere) to bump up and get the 1 mile model and see how it goes. When these things work they make life with a dog so much easier...