I like it loads more than a valve. For instance with a valve I have to hold it in my hand to make sure I don't have to walk back a few feet every time I have to shut off the flow. With pure water systems you don't want to just be wasteful with your water so the easier and quicker it is to turn on an off the flow the better. I've yet to find a better more efficient way to do it other than the Aqua Dapter. I still have the previous model and it's still working fine after about 3 years. I used to go thru valves every couple of months.