Need help

In my case, I did not take any coaching for AMA while appearing for CA Final in May 14. But considering the fact that you are working and studying at the same time, taking coaching from CCI wouldn't be bad option. 

Also would suggest you to go through Dani Ki Costing videos on YouTube. He has covered all the costing and QT with videos. If you are not satisfied by his teaching methods then CCI is better alternative. As far as I know, no one else provides Online Coaching.

While selecting which professor's online coaching to opt for, consider the time they have alloted to the topics that you feel difficult.

Feel free to contact me if you need any help.