Anyone have any experience with this product, essentially a flex supply line for toilets, faucets, etc with a quarter turn valve built onto/into the supply line and is supposed to be used when an angle valve freezes up or doesn't do its job totally (slows water flow). This supply line is added instead of having to remove the angle valve and an on-off valve on the supply line will serve the purpose of the actual angle valve to turn off the water. If confusing check SpeedyValve web site. It is a fairly new product and comes from you know where (China). Same as Floodstop, etc. which most plumber do not like. So I was told by a friend who had installed a SpeedyValve that they his plumber said that these units are burst prone and are chinese crap (no surprise). I bought some a while back but have never used. So any ideas or experience? I know that anything new such as this usually gets bad press not so much regarding the concept (clever idea) but because it is made in China. 99% of the supply lines I see at the hardware store are ALL chinese so I guess we are screwed!!!