I am presently involved in the deployment of PSIM for a fairly large customer. The product was over-sold from a 40,000 foot view, and now on the ground we are finding that although a few of the bells and whistles work most of the time, the product lacks an astonishing amount of basic functionality (like the ability to enter notes about an event or to playback recorded video at more than 1x speed.) The customer was sold on the efficiency of having a unified, graphical, single user interface that operators could utilize with less training and more intuition, but the reality is that they rely on the native interfaces for each system that PSIM was intented to replace even more than ever. I do not foresee [any] single product providing the depth of features or granularity of control that most native user interfaces provide, and while PSIM is a great "show-and-tell" piece, it still has a long way to go before it will be practical. Instead, the tens (or hundreds) of thousands of dollars being wasted on PSIM could be much better spent improving the depth of integration between all the related systems, and on end user training in the proper operation of the systems they are expected to use on a day-to-day basis.
NOTICE: This comment was moved from an existing discussion: Is There A Market For PSIM?