DSG 7 P189C P17BF fault code error

hi, i got P17BF fault code for my dsg 7 car. I found out it was a hydraulic tube fault. I found a highly recommended product for solving this error. Even though the seller got all 5 stars, I want to know if anyone has experience. DSG 7 Accumulator TRANSMISSION MECHATRONIC REPAIR KIT DQ200 VW | eBay