Reviews from Amazon and physics forums consistently highlight its value as the most "student-friendly" graduate-level text available, often compared to the legendary Landau and Lifshitz series but with significantly more mathematical scaffolding.
Greiner was a pioneer of the “learning by doing” method. Each theoretical chapter is immediately followed by a set of fully solved examples. Unlike many textbooks that leave derivations as “exercises for the reader,” Greiner lays out every algebraic step. For example, when deriving the Bose-Einstein condensation temperature, Greiner does not skip the conversion from sum to integral; he shows you the error margin of that approximation.