The level of questions is really good but the only problem is that detailed solutions are not available, and one may face many problems without solutions 

Good book for practice more problems, Also good level problems! little higher than jee adv level

God book for JEE advanced level coordinate geometry problem solving!

Contains 5 level of questions and all 5 are great conceptual and tricky questions

Excellent book for Co-ordinate Geometry problems !

No adjectives to define.. just overwhelmed.. according to me it's the best book for algebra available in the market.. go for it without any doubt.. head and shoulders above the rest 

Nice book, Must do for JEE ADVANCED AND MAINS. Only Questions, no theory, Questions were according to levels and types. Good book for practice questions 

This book boosts confidence by providing well-explained solutions and covering the entire syllabus. Practicing from it prepares students thoroughly for JEE Advanced. 

The primary philosophy of this book is to guide the aspirants towards detailed groundwork for strong conceptual understanding and development of problem-solving skills like mature and experienced mathematicians 

These set of books is complete way to IIT JEE level preparation!!

Good quality sub questions which tweaks your brain and helps in building aptitude.....its best if u want to get a top rank in jee adv best sections of this book - 2d,trig,algebra except few like pnc, other are good enough