We went from building VM's with ansible on AWS to everything being on GKE. Previously if we wanted to build out a whole new stack it could be a multiple day endeavor, now on GKE I can build out a whole new GKE cluster in a matter of hours. Its also allowed our team to sleep at night as our Ansible driven AWS architecture was fickle and fragile. I'm sure that we could have engineered our AWS infra much better, but its a lot of work, and GKE allowed us to bypass that and focus more on the business's bottom line.

There are 2 major issues that we tend to run into on GKE:

DNS Problems: most likely self inflicted, but they are a pain and can take a while to troubleshoot.

Google Cloud Platform Quota Increases take FOREVER: as far as I am aware Google refuses to allow customers to set organization wide quotas for new projects that get spun up, and there is absolutely no way to automate quota increases requests via an API. Its absolutely infuriating and makes making disposable projects all but impossible, which I was really hoping to set up for my company.

If there is anyone at GCP reading this: Please, please, please allow customers to set organization wide quotas(even for new projects that get spun up) and please give customers an API to manage these things!!!!

Overall though, GKE is pretty great for us.