Sort of helpful, sort of not - Recensione dipendente - Dipendente anonimo presso XYZ

Doesn't really have examples or videos for lots of questions and some even have nothing to do with the question itself which can be very irritating on very complex and difficult problems. Also, if there is a 5 part question and you get 4 parts of it right, it will make you re-do the whole question instead of giving another opportunity just to fix that one part.