I took this classes for preparation of jee and mhtcet.
The fees was quiet high about 1.25lacs.
The teachers had a very strong knowledge about their respective subjects.
They helped in solving doubts and queries. Whenever we needed some extra lectures , the were ready to take that.
There was only one problem that they taught us considering that we know the basics of that stuff.
You should join this if you have the confidence that you will do self study, because here no one will force you to study. The test is also of no use students copy and write the tests( this is my personal experience) .
IT MUST HAVE BEEN IMPROVED NOW.