@Egnos Well, I find the price is reasonable. At the time we built our house (4 years ago) sensors and actors for HomeKit accessories were not available, except for switching some outlets or similar. We wanted to retrofit a wireless home automation system, which works reliable and is flexible. Thus, the decision fell on Homematic. There are a few good platforms (open source) to combine various systems with each other, e.g. ioBroker (which I use) or openHub.
And yes, MMM-Homematic is the module I have on the mirror.