Despite the added features, however, Extend still may not fulfill all the requirements of a demanding researcher. Some distributions, such as beta or Pearson types V and VI, are not available. And, as mentioned previously, customizing a model for special operating conditions can be tricky. Support Technical support is available at no cost from Imagine That. This is without a doubt one of the strongest points of this package.
Technical support is invariably prompt, courteous and, above all, highly competent.
Questions that cannot be answered immediately and require some work by the staff are responded to as soon as possible. In some cases, the support staff has provided some custom code programming for particularly knotty problems, all as part of their service. In summary, I feel Extend is a good package. It allows for the quick and intuitive building of models of essentially any configuration. While it may not satisfy the needs of all researchers and does some have some shortcomings, particularly when the code of blocks is being extensively revised, its strengths outweigh its weaknesses.