We have been using Backup Systems for just under two years now. The product just works and works very well. Mark and his team provide an excellent level of service. They are always very quick to respond to any queries and are always patient and helpful. We back up Windows Servers, VMWare, Linux servers and laptops. I was having problems with a number of other vendors and I was spending a large amount of my time dealing with backup issues, vendor support calls, backup system infrastructure health and restores. When we moved to Backup Systems this work load disappeared, freeing up a large amount of my time. I would not hesitate to recommend Backup Systems to anyone wanting a robust, reliable, scalable, cross platform backup solution.