GoControl ZWave Plus 500 series switches (ie WT00Z5)

Just wondering if anyone has used these Linear/GoControl devices yet. I have one sitting on my desk that I’m going to install this weekend. It looks similar to the Homeseer switches with the scene implementation for double, triple, and tap-and holds, but it claims it can also internally handle local associations with other zwave devices without needing to go to the cloud to turn on other devices with a double tap, for instance. I’m going to try the DarwinDen handler first and see how it goes, I was just wondering if anyone else out there had any experience?