Yeah, I know about the workarounds, but that just kind of defeats the purpose for me. Also, I've read comments from folks stating they were having a hard time getting a larger prefix from Comcast using PD... don't know how universally true that is.

Using DNS to resolve everything solves part of the problem, but firewall rules are another issue. The router would need to have the capability to update everything dynamically when the prefix changes. I think this in the works for pfSense, but I'm not sure if its actually supported yet. It looks like you might have to mess around with some 3rd-party script to make it work.

I guess I'm just generally disappointed that the whole process seems unnecessarily messy. I don't have a v6-compatible ISP right now anyway. I was thinking about trying a tunnel, but I'm not seeing the benefit in it right now.

Yeah, this is the constant problem with IPv6: it's a much better design than IPv4, it's simpler to understand, and it should be theoretically much easier to use, but the tooling is all so terrible that it's often easier to just use IPv4. Which is too bad, because so many of the problems with IPv4 completely go away when you use IPv6, but right now we're stuck with dual-stack, which just doubles the amount of work to set everything up.