I have installed bticino for many years, before meeting and becoming knx partner.
Frankly I consider it a system less practical and less flexible compared to knx, the only strong point is its ease of integration with audio video and great looks.
Also for those wishing to use that, provide for large distribution cabinet, since we need a large quantity of devices.
For example in a litle house (100mq) I install an 170 din modules and it's very full (audio, clima, system alarm, automation lights).
After I tried both ... I love knx.
I think the great thing is that because aico had Bticino installed and wrote the first version of the device template we were able to use his home as a great environment to expand and improve the bticino integration.
The really exciting thing is that bticino, knx, ZWave etc will all appeal to different people in different ways and for different reasons. It is the flexibility and choice that we are keen to deliver so that users can make a decision not based on there only being 'one way' but based on the 'way' that is best for them.
Arguing the pro's & con's of one over the other is amusing (as long as people don't get too serious... or 'religious' about it lol!) but the real power is having the choice.
all the best