I'm pretty sure its the same one as they sell on their website. The test is good for giving you a feel of how the CAT will be in an actual testing scenario. It also gives you info on how many questions you got right in each particular category (PS,DS,CR,SC,RC) in each difficulty level (i think they go in easy, moderate, intermediate, difficult, and very difficult).
My main complaint on the program was that I found 6 or 7 errors in 5 exams. 3 such errors were: (1) the explanation of an answer was for a completely different question, (2) I marked the second choice and it marked it incorrect while the explanation said that the second choice was correct, (3) their answer for a DS question was flat out wrong.
So if you buy the software, I think it'll help (I don't know how good it is compared to other companies' software) but read the explanations of the right answers carefully and be wary of errors.
I thought the course materials for
MGMAT were very good and went well with the course structure. It also complemented the OG10 very well. They are also available on the
MGMAT website.