Its just a Life Saver......!!!!!!!

VERY VERY HELPFUL!!

video lectures systematically for subjects would be very useful in reference to question papers

spa solutions are too much lengthy!!

ED solutions have really impressed me. Drawings are so beautiful and it is really easier to study ED via Stupidsid solution than studying from the actual books. I would suggest that you guys add animation in ED it will enhance the experience even more. If technology is available then lets use it. It will be beautiful to use it.