I grabbed these from Amazon and installed them last night. Overall I’m very happy. I didn’t see any other topics with this manufacturer so I thought I would post it.
The product is robust, well packaged, and the directions were well written. The mounting system, while only being pipe clamps, is quite secure, though I will periodically check them to ensure they haven’t worked loose. Pairing with SmartThings was easy and the system recognized the unit as a Valve immediately.
I installed two - one at the main and one on the hot water out. This will keep the water from draining back into the water heater should it be leaking. I set up the smart monitor to close the valves should the leak sensor be activated.