Depending on the group, it think it would be a great review activity. However, if you had a diverse class of different reading levels, probably not the best pick. I like how it catches student interests through competition and also allows students to give pseudonyms or their real names, depending on what the teacher wants.
How I Use It
I would use this product as a review. It catches students interest because it is highly competitive and can be very fun. However, for the students who are struggling or are slow readers, this is not a good app. When we've done these in my college courses, sometimes it can be hard, even for college students, to read the question and answer in the time allotted. I'm not sure if the teacher can change the settings.