Review of StatXact-5 and LogXact-4 PDF: 2,160KB:
An Examination of Statistical Software Packages for Categorical Data Analysis Using Exact Methods
by Robert Oster
The American Statistician, August 2002, Vol. 56, No.3, pp 235-246.
Excerpt: "I give StatXact and LogXact an 'excellent' rating on the breadth of exact and approximate categorical and non-parametric tests that are available."

Review of StatXact-3 and LogXact-2 PDF: 29KB:
by Patrick Onghena & Wim Van den Noortgate,
Katholike Universiteit, Leuven, Belgium.
The British Journal of Mathematical and Statistical Psychology, November, 1997.

User Comments
"I searched the internet for logistic regression software and found a lot of comprehensive statistics packages that included logistic regression, along with a mountain of other things that I didn't need. I also found LogXact. I preferred to go with LogXact, the specialist package, rather than one of the generalist ones, and I've been very impressed. It took me no time to learn how to use, and it does exactly what I want."
Phil Kneale, Statistician, Australia

Anyone who routinely performs logistic regression and/or Poisson regression needs to have LogXact. Those who regularly use these techniques will almost certainly encounter situations which will not be correctly handled by any other statistical software package.
Robert A. Oster, PhD, The American Statistician, August 2002