My previous employer was a GCP customer. Google did pull occasional shenanigans totally breaking us with random upgrades without notifying us. Their support wouldn’t acknowledge it was their fault until we were mad at them.
My newer employer is AWS. Their offerings are a lot more stable and support is helpful.
If you want to build a serious business I would avoid GCP. Google doesn’t really give a shit at winning Cloud. Ads is their core business.
Ugh I'm so sorry, you should definitely have been notified in advance about breaking changes, unless they were accidental bugs and regressions. That was something we took pretty seriously for the products I worked on.
I have definitely enjoyed using AWS support. But I've also encountered some broken/janky functionality (eg using custom domain + api gateway + websockets + Lambda for the apparently niche-task of having a real website use the Lambda-websockets integration) on AWS that I don't think would have made it to production at Google. I also really dislike how they handle project-level logging compared to how it's done on GCP.
Ultimately I do think some GCP products like Bigquery, Cloud Run (I'm biased here), and Spanner as well as general DevEx/reliability factors are compelling enough for GCP to be worth serious consideration, even if AWS offers better support.
My newer employer is AWS. Their offerings are a lot more stable and support is helpful.
If you want to build a serious business I would avoid GCP. Google doesn’t really give a shit at winning Cloud. Ads is their core business.