My experience with Scaleway was essentially this: they advertise that you can have virtual servers with up to 10 150GB SSD volumes, so I signed up and created a virtual server with two 150GB volumes. After several attempts over three days, the server wouldn't start at all; it never actually started.
Scaleway's support told me that "it's because there are no available nodes matching your configuration." and "If our stock is low then there is more chance that the only free nodes are "default" ones, with 200GB available only". The solution, according to their support, would be to "keep trying to start the server until it works".
So, they'll sell you a vServer but can't guarantee when you'll be able to spin up the machine.
For me, it was a terrible experience, and Scaleway's "customer support" forums will give you a good grasp of what you're in for if you buy their service.