What is your experience with loxone? What is it worth to integrate with it?

We are moving to a new house, and I want to build a foundation in something more reliable as homeassistant and zigbee. I looked at KNX and it is ridiculously expensive (170 euros for a pir sensor is a joke). So as an alternative I'm looking at loxone, which seems to be a cheaper alternative to KNX. Do you have experience with...