> I don't know how good OVH is with outage and availability.
I've personally observed failure rates similar to AWS EC2 and EBS. You need to plan for failure, like any cloud provider.
> the raw compute is cheaper
Dramatically so. 20% of the price.
> There's also storage
You can get local NVMe, cheaply, with literally 100x the perf you can get with the most expensive EBS volumes. AWS does not have a storage offering that comes close, not even their instance store NVMe.
> what happens to his disks
VM images can be backed up automatically without downtime (on a schedule, not live.) They offer an EBS equivalent.
> OVH doesn't have regions everywhere
They have enough. us-west, us-east, eu-west, APAC, others. I'll grant that the US regions are operated by a different corporate entity and a different web interface, and that is annoying.