Their serverless support story (Oracle Functions) is pretty clunky, but for standing up instances, and the terraform provider is quite verbose, but when it works, it works in a sane and logical manner.
As an added bonus they will randomly nuke accounts and production servers without even a curtsey email.
I won't even take on clients if they are using OCI.
To be fair, I have been testing Oracle Cloud Infrastructure(OCI) on a paid account for about 2 years now and actively monitor server hosting forums.
During that time I have had no "abnormal" problems with paid production account.
However, it is well known that Oracle accidentally nuked free/trial accounts early on, and again recently accidental nuked free/trial accounts reserved public IPs. However, I know of no such events for paid accounts, and paid accounts on OCI should be production ready quality in my experience.
On the other hand support really is somewhat bad, but support is free and the cloud costs are much less than AWS, while having better products than similar priced cloud products such as Lnode, Vultr, Digital ocean.