I really like this plugin, it really makes the site a lot faster on desktops, but not on mobiles. I've also had a few issues with Google AdSense where the responsive ads were taking the whole screen instead of having a a specific size in some pages, and that's because of Instant.Pages because if I disabled it, ads are running smooth with a specific size. It may be my theme's fault also.

Blazing fast on desktop but doesn't perform that well where it's most needed - mobile. Also, I wish there was an easier way to preload specific pages.

Like a rocket!! Great for UX - Even with caching already enabled

I always install this on any WordPress site I setup. The latest version works better than ever. I hope a future version adds the defer attribute so it loads last though to further improve initial page load. e.g. <script type="module" src="/wp-content/plugins/instant-page/instantpage.js" defer></script>

Like the title says, it's a must-have plugin unless you are in an extremely cheap hosting plan that limits very much your resources. Otherwise, perfect.

Visitors get faster loading of subsequent pages. You did an excellent job. Keep it up. Humanly Yours