SharedReviews.com- Can Anyone explain to me their personal experience?

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Hi I cam across this site SharedReviews.com I have read how it functions, but would like to get some feedback from people who are already members of their site. I would like to know how much one can earn from writing reviews, and how do they calculate the earnings. Whether it is worth writing reviews and earning decently on this site. If anyone is a member of this site, please do explain. Thanks in advance