When he finally got serious and pushed, he brought it up to 7.0 in 3 days. The software's patience and sensitivity to actual levels of competency is really quite good. You don't have to learn everything over and over again. And different kinds of problems are mixed together. I hate doing homework handouts with 20 problems that are all the same.
Regular math is too simple.
It drives me nuts. And it's fun zooming ahead. It's like doing a good painting or winning a basketball game. You get to feel proud. What I don't like about it is that it sometimes gives word problems with bad answers, that aren't true in the real world.