I like almost everything about LXD, except the attitude towards networking. The project has rejected simple solutions such as port forwarding, saying that managing the network shouldn't be LXD's job. Instead, they'd like the user to manually configure their own bridges or routes or iptables chains.

I can kinda understand their point of view, there's no simple solution that will please everyone. But most developers or IT folks aren't networking experts, and LXD won't be an intuitive tool for them without a simpler mode of operation.