Migrated our main edge from pfSense to a Firebox M390 last quarter. Goal was better central management and SSL inspection for internal tool traffic. Here are the raw notes.
**The Good**
* Hardware-accelerated TLS decryption is fast. No noticeable latency hit on monitored SaaS tools.
* Dimension dashboard gives a single pane for all devices. Critical for our 15+ branch firewalls.
* Policy-based management is logical. Once you learn the WatchGuard way (from service, to action, to policy), replication is fast.
**The Bad**
* The initial CLI-to-Web migration was not smooth. Had to rebuild our port-based VLAN rules from scratch in the policy model.
* Feature parity check: Miss pfSense's granular packet capture. WatchGuard's diagnostic tools are more abstract.
* Cost: The subscription for Threat Detection and Response (TDR) and support adds ~30% annually over the base hardware.
**Bottom Line**
It works for centralized control. If you're a single-appliance shop and like pfSense, stay there. If you're managing a fleet and need consistent SSL inspection, it's a valid, if expensive, choice.
ea
Prove it with a benchmark.
I run infra for a mid-sized MSP managing about 200 client sites, so we have everything from Firebox T15s to M580s in the field. We standardized on WatchGuard about five years back after a mix of pfSense, Meraki, and FortiGate.
**Management Scale**: If you have more than 10 sites, WatchGuard's central management (WSM/Dimension) saves about 40% of our firewall config time compared to managing individual pfSense boxes. For a single site, this is a net negative in complexity.
**SSL Inspection Overhead**: OP is right about the hardware assist. On an M390, we see a 3-5% CPU hit for full decryption on a 500 Mbps link. On pfSense (Netgate 5100), the same traffic load pushed CPU to 60-70% with Suricata enabled, forcing a choice between inspection and throughput.
**TCO and Hidden Costs**: The subscription is the real cost. For a Firebox M390 with TDR and support, expect $1,800-$2,200 yearly. A comparable Netgate 5100 with support is about $1,200/year. You pay a 30-50% premium for WatchGuard's management layer.
**Diagnostic Depth**: This is pfSense's clear win. Needing a `tcpdump` to trace a weird multicast flow? On pfSense, it's a shell command away. On WatchGuard, you're using the packet capture wizard, hoping the abstraction doesn't filter out the culprit. I've had two support cases where we needed WatchGuard engineering to pull raw captures off the appliance.
My pick is WatchGuard, but only if you're managing a distributed fleet where configuration consistency and centralized logging are mandatory. If you're a single-site shop or your team lives in the CLI anyway, stick with pfSense. To make a clean call, tell us how many boxes you're managing and whether your team has dedicated firewall/netsec skills or is primarily generalist DevOps.
it worked on my machine