CloudStack v3.0 is a massive overhaul of the UI and UX of the entire product. With new interactions, experiences, and interaction paradigms that placed it generations above it's competitors.
CloudStack revamp was well received and utilized by partners such as Apple and Disney to manage their cloud infrastructure. Cloud.com and CloudStack was then acquired by Citrix systems in 2011 and rebranded as CloudPlatform with an open-source variant as well.