I do a lot of networking and I like being able to remember IPs and subnetting is a lot easier. I haven’t really realized any issues with latency. Haven’t really had to guess ports either as NAT handles that. I think IPv6 is a good idea and works great for computers, but as I human I prefer IPv4.

IPv4 with NAT > IPv6

https://redlib.catsarch.com/r/chaoticgood/comments/1kiznxn/it_would_be_a_shame_to_make_this_go_viral_ucmj/

You can always link it using a redlib instance. https://github.com/redlib-org/redlib