I've installed this valve and love it. If you want to order one and receive a 15% discount, enter "SVC2" as the discount code when you visit www.fumotovalve.com.
No more wrenching or replacing gaskets when you change the oil! Just push the little lever and the oil drains.
I also have one installed and I love mine as well. Get the one with a nipple on it, put a hose to it, and drain it into any container. And if the container gets full, close off the drain with one swift easy turn, put a new container under, and continue draining. I would put one of these on ALL of my cars. Just wish there was an easier way to get the oil filter to NOT leak oil when taking it out.