Ask HN: Is OpenBSD's relayd production quality?

We picked OpenBSD as the OS for our external firewalls, due to it's reputation for security and networking features (pf+relayd).

Yesterday we had an outage which was tracked down to the relayd daemon, which had apparently crashed.

I would be very surprised if for instance sshd would crash, which has never happened to me.

Is the relayd code of about the same quality when it comes to stability and security as OpenSSH?

We are using OpenBSD 5.3/amd64, and will upgrade to 5.4, which I read will fix some crashes with relayd. Just curious if I should expect more crashes, or if the bugs in the relayd shipped with 5.3 was exceptional or not.