They have German and Finnish data centers, as well as American. Pricing is pretty competitive, and unlike anything super autoscalable in AWS, it’s predictable.
They offer an email service that comes with their basic webhosting service, which is a bundle that costs less for 100 inboxes than Google Suite or Proton for just one user, if all you need is email.
I’m running email services on their VPS too. They block tcp/25 by default to every VPS, so you need to request opening of the port, but at least for me it wasn’t any problem and I can well understand why they do that.