It started as a necessity for my Subaru legacy. The oil drain plug is the size of a baby's fist, and the oil drains in 3.6 seconds. The fumoto valve cleaned up the process. It's nice to crawl under the car with nothing more than my drain pan and a red Solo cup. The quick release is a nice feature, and the spout makes for a more direct and focused pour into the drain pan. Another bonus is not having to mess with replacing crush washers. No issues with corrosion after nearly 7 years of DD use in sun, rain snow and salt. Need to get one for the CTS now that I think about it.