I used pfsense 2.45 previously (last year starting MCO to be exact). It's good however due I'm using thin client PC and using realtek chip for ethernet i just can get roughly 250~300 Mbps. with special kmod installed i can get it stable without any disconnected network.

However, i change the setup using OpenWRT this year and it's awesome. No problem to achieve 800Mbps (yes I'm on 800 unifi packages) with same hardware. With cake SQM now bufferbloat rating (dslreports) giving A for rating.