No convincing needed - mine works great.
Yea, I've heard those PTs can be off slightly
My point in defending it is that when researching before I bought, I read lots of negative press (often be people who never used one - just rehashing what they knew about the older polar PM) and yet most who were actually riding one and took the time to post reported excellent results (as I have had). People who rant about what junk it is will scare off those cash strapped riders who really want a PM, but can't afford the others. They would really benefit from the polar and the power data it provides.
Joe