It depends on what you’re measuring the worth of taking coaching on.

I feel that no coaching can be the best or worst for the students.

There’s no hard and fast rule that YOU HAVE TO JOIN COACHING.

IIT JEE can be cracked even without coaching but for that you will have to work really hard.

But if you want to join coaching Institute, then I advice that you should go for the BEST Institute

Even if you join coaching try not to deviate yourself from your studies and consistently focus in the class and revise the same at home or hostel.

A region wise break up of those who preferred self study vs coaching institutes for JEE preparation -

Zone/Region Self Study % Coaching Institutes %
All India 52% 48%
Guwahati 61.4% 38.6%
Kanpur 54.8% 45.2%
Roorkee 55.1% 44.9%
Bombay 52.6% 47.4%
Delhi 47.1% 52.9%
Madras 39.4% 60.6%