Window contacts available. Is the Fibaro security system any good?

Good morning and a happy new year :)

Currently, the electricians are bustling around in our shell construction and we still have the opportunity to have cables laid for a - let me call it - "alarm system light".
The whole thing should not be insanely complicated or large, but at least the windows (the loggia is a somewhat critical point since it might be accessible via the garage roof) should be secured. So, if a window is broken = alarm and a siren with a light signal somewhere visible.
Reed contacts on windows and doors are available, these are connected with a ring circuit.
A line for an outdoor siren should be laid. Otherwise, we are quite open as to whether to use a wireless system or whatever.

I just came across the Fibaro system through some googling. Is such a thing any good?
Or does any of you also have such a securing of the windows and if so: with which system?

If you have window contacts installed and they then end somewhere central, e.g. in the utility room, you can install any AA there... whether it is very simple or mega complex... you can decide that later.

The window contacts are already inside the windows (reed contacts) and the cable should - just as you said - end in the utility room. Would you still provide additional cables to be flexible? Or rely solely on a wireless system?

If the contacts are already wired, why switch to wireless?

However, I would run all contacts individually to the utility room.

You still need cables for the external/internal siren, possibly optical detectors, and a control panel where you can arm/disarm the AA.

Furthermore, you can also provide glass break sensors, bolt switch contacts on the doors, and motion detectors in the interior areas. In other words, lay cables to those locations.

I wouldn't necessarily run cables everywhere right now. However, well-dimensioned empty conduits. That way you remain even more flexible.

And I would be against any radio gadgetry anyway. As far as I know, these can be more or less easily interfered with from the outside.

If you already have the opportunity, I would do it right away. That is an afternoon's work.