>>273496091
There is none. The reality is that it depends on the user. The vast majority of opinions you read lack details. What games do they play? What kind of actions do they do? What experience do they have with other headsets? Do they even know what a certain tracking problem feels/looks like when it happens? Do they have that experience with other hardware to be able to say if they encountered such problems? How often do they play and how long do they use their headset? How long have they owned the headset? 
And similar questions apply when considering the other aspects of the product.