The voice acting sucked, everyone sounded like a screeching monkey. And overall it doesn't help you learn very well since you spend half the time listening to their dumb characters trying to be funny by making bad puns and dad jokes. Also with diagnostics you have to listen to the dumb tutorial every time you take it, and the diagnostics are not very efficient for testing. I would suggest looking for a different learning platform if your a teacher or school administrator since this platform sucks.