I have worked with other IT firms that have not lived up to their claim of “being there” for us in a pinch. Having an IT firm that we know will be there when an emergency happens allows our office to get our work done, knowing we’re covered if something happens to our network. The best of all possible worlds is that the problems are discovered before they happen, and resolved without us even knowing. That must be happening, because our problems are few, but when they do happen, PSI is there. I highly recommend their service!