Lots of providers claim to offer object storage, but try hitting them from couple thousand cores and they all tend to immediately fall over.
Unless that limitation has changed in the last couple of years; I can easily make a system beat that, if that's the requirement.. and ultimately it does come down to understanding requirements. :\
I think generally people forget that cloud is just computers too, it's really not anything special, and amazon/google/microsoft are solving the general case (and, doing so well, actually) but this comes at a high premium.
[1]: https://aws.amazon.com/premiumsupport/knowledge-center/s3-ma...
https://www.digitalocean.com/docs/release-notes/upcoming/spa...
The main reason we wanted to work with DO is that the egress traffic cost is reasonable, unlike AWS or Google Cloud where it is questionably high.
Honestly it soured my opinion on DO a bit. I'd previously had a droplet there for several years, which never seemed to experience any issues at all.