Members Opinions and Comments on Today's Electronic Voltage Regulators

I Have been using them for a couple years with good success , they adjustment is a little screw on the back super easy i set my cars to 14v its easy on the wiring and enough to keep a full charge
I did some research on them. Transpo has a manufacturing plant in Orlando, FL, which is also their headquarters.
Transpo was acquired by WAI in 2004, and operates as a wholly owned subsidiary. WAI is headquartered in PA but has a 100,000 sq ft facility in Shanghai, China.
Their narrative is impressive, but it's impossible to tell which products are built in the US or China.
How long have you had your Transpo VR? How does it adjust?