We are a managed service meaning you can sign up, download the WireGuard configuration, and forget about it. For a few extra dollars, you get reliability (we use BGP so we can failover to different datacenters), and clean IP addresses that aren't associated with spam or other cloud providers.

FWIW and since this is HN, I don’t think it’s pricey at all, it seems to very much match what I would expect a service like this to cost.

I wonder if I somehow can set up my Mikrotik routers to tunnel through you and transparently provide IPv6 for my whole LAN, that would be swell.

If you just want public IPv6 for your LAN, you could get address space for free from TunnelBroker.net and the setup for your router is well documented.

The Mikrotik RouterOS v7 beta does include Wireguard support, though I haven't tested it yet.