So we are in the process of building, and have been recommended two brands of home security systems. 1) Arrowhead & 2) Paradox.

I'm hoping there is some experience here with them both, preferably later models. Ideally I'm wanting to integrate what ever one we pick with Home Assistant and it needs to have some app functionality/notifications. I've read some reviews on the Arrowhead app on the playstore and they were pretty underwhelming.

Aside from the basic things like wired sensors and external/internal siren I like the look of the touch screen controllers, otherwise not sure what else to consider. I don't really know what they cost.

Is there any other brands to consider?

Thanks!