Don't get me wrong, not a huge fan of Oracle but am curious to know if there is an actual problem, or if this is simply a hater-ade/fanboy party with no substance.
On the other hand, without the problems, the solution engineers might not exist...
...which is, in one sentence, the reason why Oracle consultants exist.
You've never had to deal with Oracle sales or "support" staff or -- even worse -- manage or support Oracle products in production, have you? If you had, well, you would already know the answer. Oracle RDBMS might be the one exception.
(FWIW, I mean "real" Oracle products, not, say, MySQL or Oracle Linux, for example.)
Ignore the comments and just try it. Run an instance for a weekend, try to setup a site or install a DB and see how it goes. I think you'll learn very quickly why the reputation exists.
VM.Standard.1.1 and VM.Standard1.16, same cost but the latter has 16 cores instead of 1 (same CPU), 112 GB memory instead of 7.