They have a code TRIPLE15 to get 15% off your first 3 orders (on everything you order, not just Z-wave)
They have some GE/Jasco stuff, like the fan control, the “toggle-style” dimmer and add-on switch, etc.
They carry some stuff by Linear/GoControl, Aeon, and more, but some of the items seemed to be cheaper elsewhere, so I recommend price checking before pulling the trigger.
I see Rick posted this as well, which has more info about Jet Cash Back: