The level of mocks and the after explanations are quite good and satisfactory, but all i wanna say that you guys need to modify the interface as well, as you also know that in our exams any particular question is not seen in a single time on the screen, we have to click right/left frequently(that is so irritating though) yet we should practise in that way bcz it's the exam's interface and we have to adjust with it... So it will be much better if you modify the interface and give us the similar kinda feeling that we get in our real exams
Overall it's good...
If someones asks me about quality of questions. "It's awesome". Ek try toh banta hai..