I was going to use this for a pair of garage doors and a washer leak sensor / water shutoff. For both I wanted to have sensor reporting for contact closures as well as the output relays to control different related things (ie. open/close garage doors, trigger a wired power relay). I think what makes this device so appealing is it size and the dual input/outputs. I can see sticking this into any number of wired devices to give them some wireless connectivity.
That said, this device is more or less the same as the MIMO2, which you guys have to fix the driver for still. It's been since December that I was told the issue was identified and the engineers were working on it. As much as I want this new device, maybe fixing the other should be a priority since it's already supposed to be approved to work with HE.