We (at Scale) have done a lot of work with Workspot for easy VDI solutions on Scale HC3. We have also done a lot of testing and validation around more traditional terminal services approaches like XenApp and Microsoft RDS. Both approaches have merit and vary in their value proposition, management, and approaches. Of course, a lot of Scale customers use the "simple" VDI approach of simply running Windows 8 or Windows 10 desktop VMs on top of their cluster and using the stock RDP options to connect to them, no special VDI products needed if you want to go that route. There are free front ends for this approach as well, we know that someone here in MangoLassi has used Guacamole, instead of RDS, as a front end connection aggregator for exactly that purpose.