Using statistical tracking software is pretty standard for any serious player. It can help a lot playing full tables against 6 to 9 players as stats are used to get an idea of how opponents play, what their ranges are etc.

However I think, these programs are less useful for HU play. When you have only a single opponent and you are concentrating fully on their play your own powers of observation will pick up reads more quickly and consistently than the than the stat programs.