I stopped using MaxiVista a few weeks after I bought it because I really wanted a virtual KVM, not virtual multi monitor. Since then, I’ve been using Synergy, a free virtual KVM program. It works fine for long periods of time, but occasionally stops working, for reasons that I haven’t cared to explore. I just stopped & restarted the servers or rebooted. Otherwise, it’s been great.
MaxiVista 2.0 adds virtual KVM support, so I figured that I should buy at the upgrade price. I haven’t tried it yet, but I expect it’ll work fine. Then I’ll have the option to go KVM or multi-monitor.