I have the one Terry bought. I am not sure any of us knows which is best.
Having one that tells the status of the power, such as faulty ground is a nice thing, but what I want one for is to stop a power surge from toasting my wiring, even if it sacrifices itself.
Bottom line is the features of the different types may be nice, but the protection against lightning or surges is critical and until we have had that happen all we can do is hope they work. Like airbags in a car.