To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
I bought it on the strength of the other reviews, but I'm not sure I trust them now. One of them says, "I opened it up to find this polished 'gloop' of rosin". That seems to me to be a strange way to describe something that is called Jade because it looks exactly like jade! In fact none of the other reviewers names what they are reviewing, so I wonder how much Amazon blunder there might be in this section.
It's a lot more luxurious than your average glassy beginner's Chinese pale summer rosin, that's for sure, but there's something about it I'm not convinced by - I have read lots of complaints that it doesn't last long enough before you have to re-rosin (I read of one person using it having to rosin their bow three times during one orchestra rehearsal), and that's probably what I'm noticing. I'm going to switch to stickier, darker, more traditional rosins before I give any thought to giving this one the thumbs up. However, Jade is popular with people with a rosin allergy, but that's a big subject and you need to do some research.