That depends. WHS2011 is basically Server 2008R2 so yes you can login to the machine to install applications such as an FTP Server or whatnot, but it not designed as a desktop OS. It won't run games very well if at all, and using it as a standard-purpose desktop for web browsing and office tasks while doable, will be annoying due to the more stringent security policies and open up the server to attack. If you want a DEDICATED server box, go WHS2011, if it's gonna be a desktop doing some server tasks, but mostly personal useage go Win7.