I have used meritnation for 2 years in period 2012 to 2014 In my view of point its not that much good option for online tutoring. I first sign up for their free version just for checking ncert solution. But later they continuously called me to take paid accound. And I took one and after that I understood that was a total waste.
The customer care will be much helping and plesent till we take a paid account. Till I take a paid account they used to call me continuously.
They have some videos and point wise notes included. I donot feel that much usefull with that. Only thing I felt usefull was the ncert solutions.
Its is not bad in case of user-friendly and time to load. But fails in other things. I feel its better for only finding solutions.