I've been using straight OpenBSD as a router/FW for years. It has served well, has been particularly stable & easy to maintain and runs well on relatively mode

I've been using straight OpenBSD as a router/FW for years. It has served well, has been particularly stable & easy to maintain and runs well on relatively modest hardware. A couple of notes: - It's so much easier if you keep it simple as possible. If it's your router/FW, don't run your web server, file server, streaming media server, etc. on it. I mean, you can, but that's just a lot of things that can go wrong. - PF, the firewall in OpenBSD, is usually configured via CLI + conf txt files. The syntax is shall we say terse, but it's well documented and there are lots of examples. Yes, I know there are some 'PF GUIs' out there; I've never tried them on OpenBSD and don't know anyone who has. If that's a deal-breaker, then maybe look at pfSense (FreeBSD based). - Pay close attention to the hardware compatibility list; not all WLAN chipsets are well supported. - Read the documentation. Seriously. The community is at best 'difficult'; if you drop into their world asking questions that are in the doco expect active hostility. And OpenBSD is not Linux despite the superficial similarities. Don't expect everything to work like it does on Linux.