We have a number of our dedicated server clients that uses TouchSupport (not PlanetAS). They have worked with our support team with issues and have been successful. Since we do not outsource or provide outsourced services for our Clients; I would recommend TouchSupport.
AssistanZ - Beyond Boundaries... Cloudstack Consultancy / 24x7 Web Hosting Support / 24x7 Server Management / Infrastructure Management Services Web & Mobile Apps Development / Web Designing Services / Php, Grails, Java Development
we used touchsupport before we were sold to theplanet, and they were just OK, nothing more. They did alot of things wrong that did cost our company alot of money :-(
But if they have improved I can't really tell you, but we are trying supportsages on some servers, and so far so good.
But just google every company and see what you can find, if you find something negative just stay away.