If you are a beginner who doesn’t know the difference between a noun and a verb or the formula for compound interest, . The "Topic-wise" books contain only 10–15 pages of formulas at the beginning of each chapter—absolutely insufficient for conceptual learning.
Yes, provided you have access to YouTube for concept learning. Kiran handles practice; you still need theory from free sources. Many self-taught toppers have used only Kiran + YouTube + Mock Tests.
This is the #1 complaint. In older editions (pre-2020), every Kiran book had at least 5–10 incorrect answers or misprints in the answer keys. While newer editions have improved, you should always cross-check doubtful questions with online resources or fellow aspirants.