First off, ShortPixel is a great product. Their optimizer plugin works flawlessly.

Now the adaptive images is a different story. I was able to setup one site finally (had issues with the API key not working, but finally figured it out). However when I went to setup a second site all I get is following error:

"Your ShortPixel Adaptive Images quota has been exceeded. 😅

Please solve the credits amount to continue using the ShortPixel Adaptive Images plugin.

The already optimized images will still be served from the ShortPixel CDN for up to 30 days but the images that weren't already optimized and cached via CDN will be served directly from your website."

I'm sure this will get resolved, but it's annoying none the less. It's also time I could better spend.

Now with that being said, the SPAI service is FANTASTIC. I'm using it in combo with WP Rocket on a live site for testing, and after getting SPAI going it cut the load time on the site in half. Yes in half. This test is hosted on BlueHost which is notoriously slow. However there is a dramatic increase in page speed.

This is a solid CDN image product with the exception of the setup issues.