99% of anti-theft devices are nothing more than a false sense of security. A determined thief with the right tools can defeat anything. Luckily most thiefs are only looking for the quickest/easiest opportunity. So anything that costs them time will usually keep them from stealing your vehicle and they will just move on to an easier target.The Tazer PIN security is a complete waste of time - and more importantly, a false sense of security. It can be easily defeated, and from everything I have seen, it doesn't even work reliably. I have a Tazer, and I really like it. But I do not use it for security.
I do t use the PIN security feature, at least not as far as having to enter the pin. I do use killbyfob and have it lock the brakes.