Fairly decent
I use it alone and with family. What I like is how quick it is to keep moving, it's multiple choice, it keeps me learning and you get help when you need it. I wish it had more questions because it recycles them (maybe it's due to my score, IDK). FYI to the developers the question about day light savings time you have incorrect. We fall backwards 1 hr in the Fall and spring forwards 1 hr in the Spring in the US, not the other way around as you have it programmed.
