What you need to understand is that each review has a certain rating given by the OP, this does not mean that you have to agree, it is his opinion about the tracker depending on how much he used it. Of course, only someone who does not have access to PTP, BHD or HDBits can give a rating of 9 or 10 to ANT, because it is enough for him. In the end, only your personal rating matters for the trackers you use.