If you're running Windows cloud services, I tend to find Rackspace's cloud easier to deal with. I use it extensively for compatibility testing, and have found

If you're running Windows cloud services, I tend to find Rackspace's cloud easier to deal with. I use it extensively for compatibility testing, and have found it preferable to EC2 in this regard. Setting up Windows VMs is easier with Rackspace, as opposed to EC2 which has a terrible process and UI for their windows stuff. With that said, If I was building out legitimate infrastructure, as opposed to just a developer test platform, the article correctly points out the superiority of EC2 over Rackspace. EC2 has a powerful API that's unmatched in the public cloud space.