I purchased a used copy. I saw the demo but I never used it. On the actual program you are allowed to play multiple hands and customize every facet of the game and customize your chosen counting strategem be it hilo, ko, hi opt1 and 2 etc. The program in my oppinion is excellent for training and research. Buy it you'll love it!
The only thing I found that it won't do is allow you to play first base. I found out later that first base being strategically superior is a counter myth. Today many pros play center field.
The theory given is that the pit critters watch first base players because they seem to believe that is where we play. Second that mid field is lucrative as or more than first base. Third midfield is a good place to wong in and play two spots...easy access.
I have found mid field a great place to play but I like third base as well and I will jump in at first if it is open. Sometimes you are at first place at mid field in the mornings or late at night when the casinos are empty.