I’ve been using my Nortek stick for years now without any issues on either Zigbee or Z-Wave. Granted, the stick itself really isn’t going to be an issue; The stability and strength of your meshes are going to determine success or failure.
Plus, glad to see another Hubitat person coming over! If you want to continue using your Hubitat hub, there’s a fantastic custom integration that @jason0x43 wrote that allows you to keep all your devices on the HE but use HA to control/integrate them: Custom Component: Hubitat