Our experience with Google Cloud CDN has been very positive, particularly regarding its performance and global reach. It integrates seamlessly with our existing GCP infrastructure, making the setup process much faster than third party alternatives. We have seen a significant reduction in latency for our global users. The only reason it is not 5 Star is that the pricing model can be a bit complex o forecast. Some advanced cache key customizations have a steeper learning curve than expected.

I've been using Google Cloud CDN for about a year on a mid-size web app and it's been pretty reliable overall. The speeds are excellent and integration with other GCP stuff is seamless, but the pricing can sneak up on you if you're not watching cache hit ratios closely, and setting up custom domain took longer than I expected. Still, it does the job well most days.