Should I run 2 firewalls?

[Globgogabgalab]

I currently have a UniFI Firewall in place and I plan to get a OPNsense firewall mainly for a VPN.

Setup:
Modem - OPNsense - UniFI - VLANS (Rules made by UniFi)

Are there any advantages of running a setup with 2 firewalls or should I move everything to the new (more powerful) OPNsense firewall?

Thanks!

[banym]

Depends on your needs and your configuration.
Two similar configured Firewalls don't increase security that much if you don't setup special monitoring or services on each box.

Maybe an a attack vector is mitigated by different operation systems kernels but at the same time the attack surface increases because you maybe can target two systems.

For a normal network I would go with one firewall and use the more powerful for VPN.

[Globgogabgalab]

Thank you for the advice!