I ordered this on Amazon as a GE product, and it arrived in a plain white box with a Jasco sticker. The installation manual displayed prominent GE branding, but the unit itself mentions both Jasco and GE.
Be forewarned, it's big and bulky and makes the junction box very crowded. The first time I wired it up, it worked perfectly. Then I had to push it into the junction box and tightened the screws. When I turned the breaker back on, I didn't realize the bare copper ground from the adjacent switch shifted slightly and shorted the live terminal on 45609 and tripped the breaker with an impromptu pyrotechnics display.
After I checked the devices, reinstalled and made sure the wires had some distance inside the box, I reset the breaker and it still worked. The surprising part for me was even Z-Wave pairing went very smoothly.