An absolutely terrible and unusable…
An absolutely terrible and unusable website—completely unsuitable for studying. It’s nearly impossible to learn anything from it. On top of that, you’re charged twice for the same material: once to download it, and again if you want to print it. Even then, the printing feature barely works—the button is buggy, and the entire interface is clunky and frustrating. I strongly advise against using this platform for studying or anything else. It’s a total waste of money.