Has anyone ever tried this product? If so, please do share your experiences be it good or bad because I'm planning to get 2 sets over the weekend but I'm not sure if it has an improvement on the Vios. I've heard (well, read) from the Fortuner Club of the PH that it has improved their ride but as I've said, I haven't heard from anyone from the Vios community. TIA Tsikoteers!