I can see the trade point here,the small print at the bottom saying trex has an association with woosh,is a bit like the big retail company sale offers,most people only see the big 50% discount on offer,they miss the bit at the bottom stating it had only been at the higher price for 21 days or whatever,so people see the recommendation, and miss the association or do not see it as a direct plug from woosh,although trex may not see himself as a salesman for woosh and may well not be employed as such,a close association to the company and access to the products,would probably sway judgement towards that companys products,im sure if I got to ride and long term tested the latest products,and helped come up with new designs and other input ,for my love of electric bikes I would do it for free,to show my appreciation the brand would get very positive reviews from me,im sure you do not see it yourself, but just helping out on something you love can cloud your judjement.