In reply to Tom Greer.

@Tom: I'd encourage you to give it another try with v1.0 (now in beta). Your complaints about the plugin are quite valid, but they are for the plugin as it existed in v0.6 and before. We have been actively addressing these major pain points. The plugin now is able to take your active theme's responsive theme templates and serve them as AMP, along with your theme's styles. Nav menus, widgets, comments, and other standard WordPress features are all supported. This allows AMP pages to have the same design as non-AMP pages, and it greatly minimizes the amount of duplicate work to serve both AMP and non-AMP versions of your site (the paired mode). You can see this on my own site which is running the Twenty Seventeen theme:

Non-AMP: https://weston.ruter.net/
AMP: https://weston.ruter.net/?amp