How good are Unifi Security Products for privacy

are unifi security systems good for privacy as they store stuff locally but still send notifications via smart phone.

What do you want to protect? What is contained in the notifications?

just want a security system for my house

Generally for enterprise hardware they’re good and affordable.

Everything can be managed locally on your LAN, so that pretty much takes care of any privacy issues. I do believe they have some telemetry stuff but it notifies you about that, giving you a chance to opt out. I own multiple Unifi cameras, switches and access points.