I've also been playing with Scaleway's ARM servers for a scraping project and to learn more about distributed computing. (details here in other HN thread https://news.ycombinator.com/item?id=10371316)

I've been able to scale my scraping to over almost 100 requests per second in aggregate across 1.8MM domains. And these little Atom quad core machines are great.

I just got my account upgraded to "developer" which mean I can spin up 100 machine (400 cores!), so I'm going to be experimenting with that.