I think some of the comments and issues with cheap PM have to be put in context of use case. I am new to the sport, I have wimpy legs with a 210W FTP and never push more than 700W. So when I hear a review talking about issues during sprints with 1200W, am I really concerned, should I really be? I spend 99% of my time between 140 and 270W, at this point of my journey, I don’t care about a 2% offset. So the cheap $120 PM might be all I need right now.