Has anyone worked with Minoston Z-Wave Devices?

Has anyone worked with Minoston before? The hardware seems to be good and have had a good experience so far. I do get errors when turning off the unit. Specifically a time out.The unit does turn off but it is like the system is looking for an acknowledgment and it is not receiving it. There is no app at this time for the brand. The model is the MP22Z Z-Wave outdoor smart plug. Prior I had Leviton Z-Wave plugs and had lots of issues with my network going down or having massive delays that caused flows to not work right and switches to work adversely, so I pulled them all out. So far I have no real issues with errors on the network, just the timeout when turning off the device. I am just looking for recommendation on how to approach this or maybe consider creating my own app but not knowing where to start.