I have solved RD Sharma from 7th standard to 11th standard.
My cousin sister solved whole 4 volumes if RD.
Good sides: You can ace in boards exam. You can top your boards in maths subject. You will top your class. You can win hearts of your subject teacher. You will get more problems to practice till boards level.
Bad sides: It is more of a time consuming type. It has thousands of questions. You are supposed to solve all of them along with other subjects. You don’t get enough time to solve other subjects. You can not ace any competitive exam. You will only be restricted till boards level.
Ugly sides: My cousin sister solved the whole set of RD Sharma and believe me she solved each and every pie of the book. In fact she topped the state In Boards. But she was the same girl who couldn’t crack jee and only solved 6 questions in jee main leave aside advance. So you can not solve her with help of RD only.